1. "Iron Man," $50.5 million.

2. "Speed Racer," $20.2 million.

3. "What Happens in Vegas," $20 million.

4. "Made of Honor," $7.6 million.

5. "Baby Mama," $5.8 million.

6. "Forgetting Sarah Marshall," $3.8 million.

7. "Harold & Kumar Escape from Guantanamo Bay," $3.2 million.

8. "The Forbidden Kingdom," $1.9 million.

9. "Nim's Island," $1.3 million.

10. "Redbelt," $1.1 million.