| This Wk | Last Wk | Title | Dist. | Weekend Gross | Cumulative Gross | Rlse Wks | # of Theaters |
| 1 | 1 | The Dark Knight |
Warner Bros. Pictures Distribution | $42,664,219 | $393,751,065 | 3 |
4266 |
| 2 | - | The Mummy: Tomb of the Dragon Emperor |
Universal Pictures Distribution | $40,457,770 | $40,457,770 | 1 |
3760 |
| 3 | 2 | Step Brothers |
Sony Pictures Releasing | $16,506,526 | $63,172,026 | 2 |
3094 |
| 4 | 3 | Mamma Mia! |
Universal Pictures Distribution | $12,615,515 | $87,470,125 | 3 |
3062 |
| 5 | 5 | Journey to the Center of the Earth |
New Line Cinema, Warner Bros. Pictures Distribution | $6,662,406 | $72,927,314 | 4 |
2285 |
| 6 | - | Swing Vote |
Walt Disney Pictures | $6,230,669 | $6,230,669 | 1 |
2213 |
| 7 | 6 | Hancock |
Sony Pictures Releasing | $5,087,756 | $215,883,222 | 5 |
2782 |
| 8 | 7 | WALL-E |
Buena Vista Pictures Distribution | $4,603,179 | $204,078,076 | 6 |
2555 |
| 9 | 4 | The X-Files: I Want to Believe |
20th Century Fox Distribution | $3,385,878 | $17,021,373 | 2 |
3185 |
| 10 | 9 | Space Chimps |
20th Century Fox Distribution | $2,720,177 | $21,971,016 | 3 |
2134 |
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