LOS ANGELES — The Rock's sci-fi horror tale "Doom," based on the video game, debuted at the top of the weekend box office with $15.5 million.

Finishing second was Kurt Russell and Dakota Fanning's horse-racing story "Dreamer: Inspired by a True Story," which opened with $9.2 million.

The top 20 movies are:

1. "Doom," Universal, $15,488,870, one week.

2. "Dreamer: Inspired by a True Story," DreamWorks, $9,178,233, one week.

3. "Wallace & Gromit: The Curse of the Were-Rabbit," DreamWorks, three weeks.

4. "The Fog," Sony Screen Gems, $6,665,475, two weeks.

5. "North Country," Warner Bros., $6,422,455, one week.

6. "Elizabethtown," Paramount, $5,621,009, two weeks.

7. "Flightplan," Disney, $4,724,629, five weeks.

8. "In Her Shoes," 20th Century Fox, $3,885,189, three weeks.

9. "A History of Violence," New Line, $2,699,962, five weeks.

10. "Two for the Money," Universal, $2,421,835, three weeks.

11. "Domino," New Line, $2,275,531, two weeks.

12. "Good Night, and Good Luck," Warner Independent, $2,259,196, three weeks.

13. "Stay," 20th Century Fox, $2,188,199, one week.

14. "Tim Burton's Corpse Bride," Warner Bros., $1,910,316, six weeks.

15. "Waiting," Lions Gate, $1,553,539, three weeks.

16. "The Gospel," Sony Screen Gems, $1,448,763, three weeks.

17. "Serenity," Universal, $1,051,095, four weeks.

18. "The Greatest Game Ever Played," Disney, $1,045,148, four weeks.

19. "The 40-Year-Old Virgin," Universal, $623,715, 10 weeks.

20. "Capote," Sony Pictures Classics, $614,527, four weeks.