A trio of animated secret agent guinea pigs has broken the spell of Harry Potter at the top of the US box office, according to early estimates.

早期估计显示，三只特工豚鼠动画美国票房打破了哈利波特的记录，位居榜首。

G-Force, a Disney live action and computer-generated animation, took $32.1m (£19.4m) over the weekend.

Harry Potter and the Half-Blood Prince has dropped to second place with a $30m (£18.1.m) haul in its second weekend.

Internationally, the movie - the sixth in the Potter franchise（特权，公民权） - has raked（向船尾） in $627.1m (£380.2m).

The film opened with $79.5m (£48.4m) in the US last weekend.

Romantic comedy The Ugly Truth, starring Katherine Heigl and Gerard Butler, took $27m (£16.3m) to make the third spot on its opening weekend.

Horror movie Orphan debuted at number four with $12.7m (£7.7m).

And Ice Age: Dawn of the Dinosaurs dropped from second place to fifth, with takings of $8.2m (£4.9m).