Harry Potter's box office magic was taken down by a squad of guinea pigs.

The 3-D animation, "G-Force," was the top movie at the box office this weekend,
opening with a little more than 32 million dollars.

Last week's top film,  "Harry Potter and the Half-Blood Prince," was close
behind with an estimated 30 million.

Coming in third was "The Ugly Truth," a romantic comedy.

It opened with 27 million.