| This Week | Last Week | Film Title | Days In Release | Gross ($M) | Weekend Gross ($M) |
| 1 | -- | Tropic Thunder | 5 | 37.0 | 26.0 |
| 2 | 1 | Dark Knight, The | 31 | 471.5 | 16.8 |
| 3 | -- | Star Wars: The Clone Wars | 3 | 15.5 | 15.5 |
| 4 | -- | Mirrors | 3 | 11.1 | 11.1 |
| 5 | 2 | Pineapple Express | 12 | 62.9 | 10.0 |
| 6 | 3 | Mummy: Tomb of the Dragon Emperor, The | 17 | 86.6 | 8.6 |
| 7 | 6 | Mamma Mia! | 31 | 116.4 | 6.5 |
| 8 | 4 | Sisterhood of the Traveling Pants 2, The | 12 | 32.2 | 5.9 |
| 9 | 5 | Step Brothers | 24 | 90.9 | 5.0 |
| 10 | -- | Vicky Cristina Barcelona | 3 | 3.7 | 3.7 |
