A gang of covert guinea pigs bests Harry Potter for the weekend B.O. crown:

The 3D animated “G-Force” was the top movie this weekend, opening with $32.2 million.

Last week’s No. 1 film, “Harry Potter and the Half-Blood Prince,” came in a close second with an estimated $30 million. That’s a whopping 61 percent drop from its huge opening last weekend of $79.5 million.

G-Force is producer Jerry Bruckheimer’s first foray into family movies.

Huge drop for HPHBP. Still $222M cume so far nothing to sneeze at.