The top movies at the North American box office

LOS ANGELES, March 23 (Reuters) - Following are the top 10 films at the North American box office for the three-day weekend beginning on March 21 -- led by "Dr. Seuss' Horton Hears A Who!" -- according to studio estimates compiled on Sunday by Reuters.

1 (1) Dr. Seuss' Horton Hears a Who! .. $ 25.1 million

2 (*) Meet the Browns .. $ 20.0 million

3 (*) Shutter .......... $ 10.7 million

4 (*) Drillbit Taylor .. $ 10.2 million

5 (2) 10,000 BC ........ $ 8.7 million

6 (3) Never Back Down .. $ 4.9 million

7 (4) College Road Trip ............... $ 4.6 million

8 (6) The Bank Job ..... $ 4.1 million