Washington, April 7 : '21,' the card-counting drama starring Jim Sturgess, Kevin Spacey, Kate Bosworth, and Laurence Fishburne, has topped the weekend box office again raking in 15.1 million dollars, as per estimates compiled by Exhibitor Relations.

The film, which is based loosely around the story of a 1990s incarnation of the MIT Blackjack Team, is followed by George Clooney's 'Leatherheads,' which earned 13.5 million dollars, reports E! Online.

At number three was Jodie Foster's 'Nim's Island' with 13.3 million dollars.

'Dr. Seuss' Horton Hears a Who!,' which was number at number two last week, fell down to fourth place with an earning of 9.1 million dollars. Rounding off the top five was 'The Ruins,' with earnings of 7.8 million dollars.

The list of top-grossing weekend films is as follows:

1. 21, 15.1 million dollars

2. Leatherheads, 13.5 million dollars

3. Nim's Island, 13.3 million dollars

4. Dr. Seuss' Horton Hears a Who!, 9.1 million dollars

5. The Ruins, 7.8 million dollars

6. Superhero Movie, 5.4 million dollars

7. Tyler Perry's Meet the Browns, 3.5 million dollars

8. Drillbit Taylor, 3.5 million dollars

9. Shutter, 2.9 million dollars

10. 10,000 B.C., 2.8 million dollars

ANI