LOS ANGELES - "Robots" ruled the box office as the animated family flick debuted with $36.5 million - a solid opening, but well below the $46.3 million premiere of the filmmakers' previous hit, "Ice Age."

While "Ice Age" opened with little competition for the family crowd, "Robots" faced Vin Diesel's hit "The Pacifier," the previous weekend's No. 1 movie.

1. "Robots," $36.5 million.

2. "The Pacifier," $18.1 million.

3. "Be Cool," $10.3 million.

4. "Hostage," $9.8 million.

5. "Hitch," $8.7 million.

6. "Million Dollar Baby," $5.1 million.

7. "Diary of a Mad Black Woman," $5 million.

8. "Constantine," $3.7 million.

9. "Man of the House," $1.8 million.

10. "Cursed," $1.6 million.