Ice Cube's comedy First Sunday was a close second in its debut with 19-million bucks.
The teen-pregnancy comedy Juno dropped one spot to third with 14-million dollars.
The box-office champ for the last three weekends, National Treasure: Book of Secrets, fell to fourth with 11-point-five million, raising its total to 187-point-three million.
Alvin and the Chipmunks spent its fifth weekend in the Top 5 at number-five. The kid's movie earned nine-point-one-million dollars, taking its gross to 187-point-seven million.
The weekend's two other new releases, the children's movie The Pirates Who Don't Do Anything and In the Name of the King: A Dungeon Siege Tale, were dead on arrival, finishing in ninth and 14th place, respectively. --James Aquilone