Totally tedious outing from the Apatow school of comedy. Hey, what if Jack Black and Michael Cera were like totally cavedudes? And what if they bumped into Cain and Abel? And what if they were like, totally played by David Cross and Paul Rudd? Would hilarious results ensue with total dudely charm?
You get the idea. In fact, it's all in the trailer. All the good gags (which seem a lot less funny when they're all the film really has) are in the trailer. See that. Avoid this with a prehistoric stick. Once we get to Sodom (hmm, wonder if they'll get any jokes out of that?) the whole thing descends into one of those pointless comedy chase/bust-up/big fights that really make no sense at all. There's an evil king who keeps sacrificing virgins! There's a camp evil high priest! There are fart jokes! Gay jokes! Cera ends up pissing on himself upside down!
It's a shame to see Black and Cera, two naturally talented performers with a good sense of comic timing reduced to the basest level of their (admittedly limited) ranges. Black's all wacky loser guy; Cera's a clever mumbler. It's not enough here.
Please don't make Year Two.