This week's sales data, compiled by Nielsen/SoundScan.

1. "Mamma Mia!"

2. "The Dark Knight."

3. "The Mummy: Tomb of the Dragon Emperor."

4. "Dr. Seuss Horton Hears a Who!"

5. "Wall-E."

6. "The Chronicles of Narnia: Prince Caspian."

7. "Hancock."

8. "Independence Day."

9. "Wanted."

10. "Kung Fu Panda."