Surprisingly dull and generally unfunny. (The trailer displayed 95% of the film's decent jokes.) Vince Vaughn only has one character. If you have seen Old School, then you have seen his character here. Ditto Ben Stiller and just about everything he's done in the last decade.
I think it wants to be an action SF comedy. They should have watched Evolution for clues on how to do this sort of thing right.
Jonah Hill generally works, especially in a running gag where he keeps trying to kiss Stiller's wife (the always appealing Rosemarie Dewitt). Also, Richard Ayoade can do no wrong.
What else good? It looks very nice, when it's not filling screens and faces with goo. Oh, and there's a great shot of Denise Richards exiting the pool in Wild Things that's projected onto about 10 tv screens at once.
Not a bad movie -- just aggressively mediocre. Disappointing.