Year One

Comic shtick filled with jokes that were old when the Old Testament wasn't. Jack Black naturally looks like a caveman and Michael Cera naturally looks like a dweeb, which happen to fit their characters, who are dumb hunter-gatherers who get kicked out of their tribe for not pulling their weight. Somehow these Neanderthals stumble into various biblical situations, such as witnessing Cain kill Abel, and wind up in Sodom where Zed decides it would be fun to proclaim himself a religious deity (good for getting chicks).