The top 10 movies at the North American box office

LOS ANGELES (Reuters) - Following are the top 10 films at the North American box office for the weekend beginning on Aug 22, led by "Tropic Thunder," according to studio estimates compiled on Sunday by Reuters.

1 (1) Tropic Thunder ...... $ 16.1 million

2 (*) House Bunny ......... $ 15.1 million

3 (*) Death Race .......... $ 12.3 million

4 (2) The Dark Knight ..... $ 10.3 million

5 (3) Star Wars: The Clone Wars .......... $ 5.7 million

6 (5) Pineapple Express ... $ 5.6 million

7 (4) Mirrors ............. $ 4.9 million

8 (*) The Longshots ....... $ 4.3 million

9 (7) Mamma Mia! .......... $ 4.3 million

10 (6) The Mummy:

Tomb of the Dragon Emperor ....... $ 4.1 million

NOTE: Last weekend's ranking in parentheses. * = new release.

TOTALS TO DATE

The Dark Knight .......... $489.2 million

Mamma Mia! ............... $124.5 million