It's simple. Members of the GITS community, myself included, are going to read, analyze, and comment on 40 scripts in 40 days, one great screenplay from a notable movie per day.
Why?
Here is my most basic mantra about learning the craft of screenwriting:
Read scripts.
Watch movies.
Write pages.
Those are the three single most important things you can do to learn how to write screenplays. And right there at the top is "read scripts."
Hence "40 Days of Screenplays."
DAY 1
Title: Back to the Future
Writing credits: Written by Robert Zemeckis & Bob Gale
Year: 1985
Studio: Universal Pictures
Domestic Box Office: $210M
Plot summary: In 1985, Doc Brown invents time travel; in 1955, Marty McFly accidentally prevents his parents from meeting, putting his own existence at stake.
Tagline: He's the only kid ever to get into trouble before he was born.
Awards: Nominated for WGA Best Screenplay Written Directly for the Screen Award, nominated for 4 Academy Awards, winning 1
Trivia: The time machine has been through several variations. In the first draft of the screenplay the time machine was a laser device that was housed in a room. At the end of the first draft the device was attached to a refrigerator and taken to an atomic bomb test. Robert Zemeckis said in an interview that the idea was scrapped because he and Steven Spielberg did not want children to start climbing into refrigerators and getting trapped inside. (See also Indiana Jones and the Kingdom of the Crystal Skull (2008).) The Nevada desert bomb test was left out in order to reduce the budget. In the third draft of the film the time machine was a DeLorean, but in order to send Marty back to the future the vehicle had to drive the DeLorean into an atomic bomb test.

Date: 10/21/84 (revised 4th draft)
Pages: 95
You may download the shooting script here.
Date: 2/28/85
Pages: 147
These are two good scripts to commence our "40 Day" challenge. They're fun, funny, and really quick reads. The scripts also do something important: They introduce you to the fact that many of the scripts available online are not actual shooting scripts. In fact, there are numerous differences between early draft of Back to the Future and the shooting script.
I prefer to look at this as a positive because it's always a good learning experience to consider why the screenwriters added, omitted, or changed scenes and/or sequences -- a great way to get into the filmmaking mindset.
As an example, I posted this yesterday -- a comparison of the opening scenes in the 84 draft and the 85 draft -- to show how the screenwriters Zemeckis & Gale wanted to introduce Doctor Brown early, show Marty as a musician, not just a music fan, and mostly to jump-start the plot by introducing a number of key points of exposition right upfront.
Let's note in comments the most significant changes between the 10/21/84 draft and the movie. Indeed it would be great to create a comprehensive list of those differences as part of our discussion.
Enjoy reading Back to the Future! I look forward to reviewing your comments. I'll add some of my thoughts later in the day to give you a chance to dive in first.
NOTE: If anybody has a better version of any of the scripts we'll be reading during the "40 Days" challenge, please email me.
UPDATE: This is great news. The folks at tracking-board.com have graciously offered to host all the scripts in the "40 Days" challenge as well. That link is here. What's cool about this link is there are multiple drafts of many of the titles we'll be reading. So check it out. And thanks to TB!
OBSERVATIONS: First, let me echo the sentiment in comments about what a good read the scripts were, especially the 85 draft which is sharply superior to the 84 draft. In comments, someone mentioned the tone and style of the scene description. That's what I call "narrative voice," basically this: Genre + Style = Narrative Voice. BTTF is a comedy with a lot of action to it and the script's scene description reflects that.
Second, there are a couple of comments about how many set-ups & payoffs there are in the script. I was struck by that this time, too. Dozens and dozens of what I call "Bits Of Business" (BOBs). For example in the Present (P. 8), a "Re-Elect Mayor Goldie Wilson" truck blares by; in the past (P. 46), Marty runs into Goldie, who's working as a busboy in the cafe, and gives him the idea about running for Mayor ("That's right--he's gonna be Mayor someday"). So you not only have a BOB, you reverse the dynamic: The set-up occurs after the payoff.
But the main takeaway I had this time around was the efficient use of subplots. Here are some of them:
* MARTY AND HIS MUSICAL ASPIRATIONS
* MARTY’S FATHER (GEORGE)
* MARTY’S MOTHER (LORRAINE)
* GEORGE AND LORRAINE’S ROMANCE
* MARTY’S FADING FAMILY
* DR. BROWN AND THE LIBYAN TERRORISTS
Each one of them is not only tied to the overall plot, but in combination they increase the tension as Marty has to handle this one, then that, then another, like a guy trying to manage a bunch of spinning plates:

Finally, writers talk about the value of having a ticking clock, some sort of narrative device that creates a deadline for the Protagonist. Well, BTTF has a number of ticking clocks:
* The exact time of the lightning strike
* The photo with the fading family
* The necessity of getting George to kiss Lorraine at the dance
* Getting back to the present in time to save Doc from the Libyan terrorists
In sum, a great script! Please keep your comments coming. And remember, the script for Day 2 is Witness. You can download a PDF of the script here.
UPDATE #2: Lots of insightful comments. Let me grab a few here to highlight some points.
Nelson said:
I love how I can hear a writer's voice in the action/description. When I write action, it's descriptive, but boring. Not this screenplay. I can feel the excitement of the screenwriter.I mentioned Narrative Voice which boils down to this formula: Genre + Style = Narrative Voice. BTTF is an action-comedy. Therefore the scene description should read "action" and "comedy." Look at Nelson's example:
example: BROWN reacts with horror. He now has a useless plug in his hand. Lightning cracks even closer!
BROWN reacts with horror. [action]
He now has a useless plug in his hand. [comedy]
Lightning cracks even closer! [action]
A good exercise is to go through BTTF (the 85 draft) and focus strictly on the SD to zero in on the script's narrative voice.
nathanieltapley.com wrote:
I love the changes in the opening sequences. What (in the 84 script) is a fairly standard, pedestrian introduction to Marty and his world - was it just me or did it have a real John Hughes feel? - becomes one long pan that is highly visual, takes on a lot of exposition, and sets up a mystery (Who is the person who invented all of this and where are they?).That's a great call as the 84 draft does feel like a variation of John Hughes. The 85 draft really kicks in on the action front, pulling together all the various subplots to put Marty constantly needing solve crises.
Annika W had this observation:
One of the great improvements in the 85 script is the character introductions of Doc, both young and old. There was no need to show him pulling up in an RV and a Hawaiian shirt. Like the teacher in the 85 script, it was unnecessary business at the top of the script that led nowhere. It's so much more intriguing to foreshadow Doc with the interesting Rube Goldberg alarm clock, then have him drive out of a truck in the Delorean. Much more efficient, too.Absolutely! Typically one might think it's better to see a character as a means of their introduction, like the 84 draft did, rather than hear them (on the phone twice) before actually physically meeting them, like the 85 draft did. But as Annika points out, the approach in the movie uses foreshadowing to both inform us about Doc's personality (through all his Rube Goldberg stuff) and tease us, creating a sense of anticipation, so when we finally do meet him, it's a fulfilling moment -- especially since he makes his arrival in a time-traveling Delorean.
Finally judy said:
This time around, I was struck by the clear, clever use of all those ticking clocks and watches, the courthouse clock, plus all the precise timing requirements of the plot to reinforce the theme of Marty's life-or-death time-travel adventure: that how we use each precious minute of every day can dramatically affect our future.True, and my guess is that this is an example of the writers digging deeper and deeper into the story (their first draft was in 1981!) so that by the time they did the 85 draft, they understood what was going on quite well. So for example, they knew that one major theme of the movie was time. Not just time travel, but all the various ticking clocks they set into motion through various subplots. Which is reflected in their "purposeful rewriting" and the way the script (and movie) begins: all those ticking clocks.
Placing all those clocks in the opening scene in the final draft really impressed me as an artful benefit of purposeful rewriting.
Great comments, folks!

30 comments:
I have a week off work so I'm a bit ahead of the curve on this one (I'll be starting Fargo tonight).
What surprised me with BTTF was just how quick the script read. It was a breeze to get through and flowed really nicely.
As you pointed out in the post I think reading these earlier drafts is a good thing as it allows to see what changed were made and to think about WHY.
Some of the dialogue (particularly the exposition) was very on the nose in this draft but it was something I can't recall at all from the finished product.
Excellent first choice for this feature!
I concur! I was amazed at how easy a read this was and it kept me reading too. Every single word was integral to the plot and story. No slack at all here. Learning plenty already.
On 'The Tracking Board' was a link to 1st draft of BTTF dated 1981.
It flowed so easily. And I've always been amazed at the way the subplots get worked on in terms of history. Especially how the jokes in 1955 relate to the future in 1985, like the reagan quips.
I have read the 85 script and I'm currenlty zipping through the 84 script.
I have seen BTTF many, many times, and the 85 script highlighted how less is more when compared to the finished product.
Not sure if it happened in the edit, but quite a few scenes were cut short by one or two lines, but on each occasion I can see why they were cut. The scene between Darth Marty and George was cut to excellent effect.
Differences between the two scripts that stood out to me offhand:
1- Meeting Doc in the past. In the earlier draft he's introduced as 35, wearing evening clothes and flanked by TWO LOVELY GIRLS. In the shooting script he's wearing an OUTRAGEOUS CONTRAPTION on his head and his action/dialogue is much more characteristic of Doc in the rest of the script (talking to pictures of Edison and Ben Franklin)
2- Marty/Biff skateboard chase. In the earlier draft Marty escapes Biff when he happens to juuust outrun a diesel train. In the shooting script, Marty outwits Biff directly in a much more tense and unexpected moment, jumping onto and over the car. Also, rather than break up the action and having Biff's cronies talking about building the "roller boards" and selling them as is present in the early draft, in the shooting script we SEE the same idea conveyed much better at the end of the action, with the kid getting his board back and his friend immediately breaking his scooter into a skateboard too.
Both really good changes IMO, not sure where they were going with the party scene in the earlier draft...
I haven't seen this movie in years. But I've just moved it up to the top of my Netflix list.
I hope they're all this easy to read. I might just be able to keep up with the reading.
I love how I can hear a writer's voice in the action/description. When I write action, it's descriptive, but boring. Not this screenplay. I can feel the excitement of the screenwriter.
example: BROWN reacts with horror. He now has a useless plug in his hand. Lightning cracks even closer!
I usually get annoyed by the overuse of exclamation points, but it worked in this screenplay. And there were tons of them!!!
One of my favorite movies, so definitely a great choice to kick this off with.
It was very impressive to note how this script seems very tight and efficient, and yet they were able to make it even moreso for the shooting script.
Also, the number of setup/payoff elements in the script are amazing. I had forgotten how good of a job they did in placing ideas that would reappear later in this movie and in the sequels.
i like to contribute some stuff. english is not my first language, but i try.
Two differences between 4th draft and shooting script:
- no discussion about 20 dollar-bill anymore (#47)
- in different scenes of the 4th draft is mentioned how (un)healthy cigarettes are (e.g. the tv spot #56 and marty/lorraine in the car #114), in the shooting script not anymore
Differences between the scripts and the movie:
- they cut away the fighting-exercices of george
- the scene with martys letter explaining the danger for brown and the scene with brown paying the police officer were merged to good effect (now they are simultanously)
- i wondered why they cut (i guess in the edit) the scenes with marty and his letter to the record company. the two desk-scenes were present in both scripts but not in the movie anymore. perhaps of time problems. you can see the leftover in scene 226: marty with the envelope
but is this not an important problem of marty: to overcome the heritage of his father (fear of rejection)?
Great choice! This script is particularly well structured and works as a great model if want to see a script with 8 tidy sequences.
I love the changes in the opening sequences. What (in the 84 script) is a fairly standard, pedestrian introduction to Marty and his world - was it just me or did it have a real John Hughes feel? - becomes one long pan that is highly visual, takes on a lot of exposition, and sets up a mystery (Who is the person who invented all of this and where are they?).
Overall, what's impressive is the way every element is usually doing a couple of things: either setting something up or paying it off or giving a nice bit of comic business at the same time as pushing the plot forward.
I was also struck by how short the second act feels (from Marty arriving in 1955 until the evening of the dance). It was refreshing, and really maintained the pace.
I felt a John Hughes feel in the 84 script, too - very Ferris Buller for a little bit.
One of the great improvements in the 85 script is the character introductions of Doc, both young and old. There was no need to show him pulling up in an RV and a Hawaiian shirt. Like the teacher in the 85 script, it was unnecessary business at the top of the script that led nowhere. It's so much more intriguing to foreshadow Doc with the interesting Rube Goldberg alarm clock, then have him drive out of a truck in the Delorean. Much more efficient, too.
I also get that George has a real crush on Loraine in the 85 script and would love to ask her to the dance - if only he had the guts. In the 84 script, I didn't sense that he had a crush on her, rather he was just a little pervy and thought she was a hot girl to spy on.
Did I already miss the first day of this? Bummer. I thought we started on the 20th.
I didn't get the chance to read the entire scripts but read the beginning of each and already could see a great difference not only to the script itself but in defining the Marty character and how we view him.
It is really interesting to see how scripts get developed and change so much from one idea to another, it would be great to see a few more of these draft vs shooting scripts during these 40days.
Like Tomas, english is also not my first language. So I may use the wrong words when I actually want it to mean the other way, but I'm trying to make this clear. I hope this is not confusing for you. :)
It is really interesting to read the different versions of the script. I can't stop comparing them and trying to imagine why they made such changes, what is the creative process that goes on during the development and how did the discussion go.
The noticeable change of all is in the opening. And I agree that it gets better with every draft.
So I guess they key to why they keep on perfecting the opening is because they want to set the right tone for the movie. The 1981 opening makes us see Marty as someone resourceful but kinda cheeky, he's willing to do illegal things to meet his ends. The 1984 one does feel like a Hughes' movie. And the 1985 tells us a whole lot more about the setting and characters apart from Marty's.
This is great first day read.
This is a gr8 beginning.
As how Scott had mentioned in his 'NARRATIVE THROUGHLINE ', the beginning of the adventure often comes in the form of a herald calling to the Protagonist..In this case in 85 draft:
Marty answers the 'call' from Brown. (Pg. 3).
Something i like the most in screenwriting is 'I dont know whats the word for it' .ie in (Pg 10-11)
Marty and Jennifer try to kiss but the clock woman interrupts thm , giving a flyer.
Jennifer writes the number (I lov u)on back of it.
Marty keeps tht in his pocket.
then in (P 61) .
The same flyer is what gives Marty the answer to travel back. ie the lightning bolt which stopped the clock at 10.04pm.
Whts the word for this Mr.Scott, anyone!. I luv tht.
What i mean to say in the last post is "The acceptable coincidence" , how the writer had planned the first event, keeping mind what happens next or Vice-versa.
is the link to Witness in the 40 days pdf not working for anybody else?
@Steve: Try this link.
@Tagore3d: I think what you're referring to is "set-up & payoff." The writer sets up a plot device - in the case you mentioned, the flier - then it gets paid off later (as when Marty finds it and it has critical info re the timing of the lightning strike).
The fact that there is a set-up moves it out of the 'coincidence' category. For instance, if the old woman had bothered Marty and Jennifer, giving them the flier, and instead, Marty had been in the past, and just happened to dig into his coat pocket to find the flier, then that would be a coincidence.
What a fun and furiously fast read. I guess what I liked so much about it (since so much else has been covered) is the playful tone of the writing throughout. There was a "come along for the ride" feel about it that just pulled me along -- a real page-turner!
So thts the word: "Set-up and Payoff ". I think there are somany cases in this film (ofcorse not obvious at all in the story's flow)
May be we should post a new coloumn re 'Setup-paoff' cases in all(best) movies.
Thankyou Mr.Scott.
This time around, I was struck by the clear, clever use of all those ticking clocks and watches, the courthouse clock, plus all the precise timing requirements of the plot to reinforce the theme of Marty's life-or-death time-travel adventure: that how we use each precious minute of every day can dramatically affect our future.
Placing all those clocks in the opening scene in the final draft really impressed me as an artful benefit of purposeful rewriting.
Since I'm always looking for ways to use longer sides of dialogue with clarity, I also loved the mini-paragraphing technique that the Bobs used to indicate pauses, breaths, changes of thoughts.
Thanks to Scott and many fellow gitters for the additional insights.
Sorry I'm late to the party. Only read the shooting script, ages since I've seen the movie.
Great read. Very lean, economical script.
The set up of the crazy lady's flyer used for the pay off of the lightening strike that sends him back to the present was brilliant.
A few quibbles:
The family photograph fading and coming back seemed like an unnecessary contrivance to me.
Last scene where Marty and Jennifer go into the future seemed unnecessary and distracting. I know they wanted to set up a sequel, but they didn't need that scene seems to me.
Suburban, white kid being responsible for rock n' roll. (Is nothing sacred?)
I dont know Iam right!,(also ths might sound stupid) I remember, In the movie beginning when Brown says that He doesn't have enough plutonium to come back(to present) after going 30 years to the future.
But in the ending after Marty's return, Brown sets off to the future(to 30 yrs).
(How does he get enough fuel?),
If Iam not wrong, (or I'd missed something)
Is this an issue we should 'take lite' ?
I would love to quiz the Bobs to see how they went from the inferior '84 opening to the vastly superior '85 one. Such a huge leap in quality, and the end result has to be one of the most economical scenes ever. If only more screenplays could be this smart about establishing tone, theme and relaying exposition. Love the film, love the screenplay. Brilliant.
I agree with the comments that the 85 version is far more 'professional' than the 84 version.
I have a few questions though. As rewriting is an art and not a science, when should an agent/manager/prod-co get involved in the process?
We all get scripts to a stage where we think it is ready for people to read them.
What's the story with BTTF? When did someone else's input shape the script?
It's difficult for unproduced writers to know when to submit, so a little insight into the development process of great scripts would be very helpful.
@Point Break: That sounds like a good Reader Question. Mind if I take that up as a separate post?
Please do Scott,
I would like to know whether managers/agents/prod-cos are still willing to take on writers/projects even if they are a little rough around the edges if they show potential.
Most of us have read the early versions of Star Wars, not one of my favourite scripts, but look how that turned out after a few rewrites. One of the best films of all time.
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