I was so excited to see this movie and (especially given the cast) expected it to be hilarious. Outside of the Michael Cera bits (which were hilarious) this movie was absolutely terrible. I found myself chuckling maybe once or twice. As with many mediocre movies you can pretty much watch the trailer, see all of the funny parts, and save yourself $12. This is coming from someone who absolutely loves crude humor and favorite movies include: Superbad, The 40 Year Old Virgin, Hangover, Knocked Up, etc. This movie doesn't hold a candle to any of them and the worst part is it drags on. The actual end of the movie pretty much exemplifies how terrible the entire thing is.
One of the other things I noticed is that I thought Jonah Hill was terrible in this movie. His role / part was just weird and not funny.