| | Movie | Distributor | Weekend Gross |
Total Gross |
| 1 | Iron Man |
Paramount |
51,190,629 | 177,825,024 |
| 2 | What Happens In Vegas | FOX |
20,172,474 | 20,172,474 |
| 3 | Speed Racer |
Warner Brothers |
18,561,337 | 18,561,337 |
| 4 | Made Of Honor | Sony | 8,116,323 | 26,791,494 |
| 5 | Baby Mama | Universal | 6,225,790 | 40,836,370 |
| 6 | Forgetting Sarah Marshall | Universal | 3,837,240 | 50,781,745 |
| 7 | Harold & Kumar Escape | New Line |
3,106,424 | 30,667,308 |
| 8 | Forbidden Kingdom | Lionsgate | 2,169,323 |
48,530,104 |
| 9 | Nim’s Island |
FOX |
1,463,622 |
44,395,857 |
| 10 | Prom Night | Sony |
1,012,986 | 42,785,107 |
WEEKEND BOX OFFICE ESTIMATES FOR MAY 9TH – MAY 11TH, 2008