Comedy Zombieland has topped the North American box office, scoring Woody Harrelson the biggest film opening of his career.
The movie, which features the star as a killer fighting an epidemic of the undead, took $25m (�15.7m) in its opening weekend. Harrelson's previous best opening was 1993's Indecent Proposal which took $18m (�11.3m)
Family animation Cloudy With a Chance of Meatballs slipped to number two.The top 10 featured four other new releases in a weekend where sales were generally down.
A 3D double-feature re-issue of Pixar's Toy Story and Toy Story 2 opened at three with $12.5m (�7.4m), ahead of the release of Toy Story 3 in 3D next June.
Ricky Gervais comedy The Invention of Lying, which takes place in an alternate reality where everyone tells the truth, debuted at number four. Michael Moore's Capitalism: A Love Story took $4.85m (�3m) despite only showing in 962 cinemas.
It tied in sixth place with Drew Barrymore's directorial feature debut Whip It starring Ellen Page as a teenager who attempts to escape small town life by taking up roller derby, a contact sport of speed roller skating.