Based on Sunday’s estimates, courtesy of boxofficemojo.com:

1) Talladega Nights: The Ballad of Ricky Bobby: $23 million ($91.2 million, second week)
Will Ferrell gets to reign one last week before the Greatest Movie Ever Made (that would be “Snakes on a Plane,” for the unwise) hits the theaters and shakes us to our very foundation.
2) Step Up: $21.1 million (first week)
They lost us once we realized this wasn’t a movie about the Stereo MC’s.
3) World Trade Center: $19 million ($26.8 million, first week)
Too soon? No, try too boring.
4) Barnyard: The Original Party Animals: $10.1 million ($34.1 million million, second week)
We refuse to dignify this movie with a clever one-liner about it. It’s just not worth the trouble.
5) Pulse: $8.5 million (first week)
Scout’s honor, we didn’t even know this movie was released this weekend.