Michael Jackson's This Is It debuted #1 at the box office, earning $21.3 million this weekend. Paranormal Activity fell one spot to #2, earning $16.5 million. Law Abiding Citizen fell one spot to #3, earning $7.3 million. Couples Retreat fell one spot to #4, earning $6 million. Saw VI fell three spots to #5, earning $5.5 million and raising its two week total to $22.8 million.

BOX OFFICE TOP TEN
1. Michael Jackson's This Is It - $21.3 million ($32.5 million)
2. Paranormal Activity - $16.5 million ($84.7 million)
3. Law Abiding Citizen - $7.3 million ($51.3 million)
4. Couples Retreat - $6 million ($86.6 million)
5. Saw VI- $5.5 million ($22.8 million)
6. Where The Wild Things Are - $5.08 million ($61.8 million)
7. The Stepfather - $3.4 million ($24.7 million)
8. Astro Boy - $3.03 million ($10.8 million)
9. Amelia - $3 million ($8.3 million)
10. Cirque du Freak: The Vampire's Assistant - $2.8 million ($10.5 million)