Year One Trailer, Jack Black and Michael Cera!

Director: Harold Ramis

Writers: Harold Ramis, Gene Stupnitsky, Lee Eisenberg

Cast: Jack Black, Michael Cera, Oliver Platt, David Cross, Hank Azaria

Plot: When a couple of lazy hunter-gatherers (Black and Cera) are banished from their primitive village, they set off on an epic journey through the ancient world.