The Hangover: If you have had a tendency to overdo a good thing then you can almost relate. Liked this one a lot,Seen it for the first time today, and I think the Korean guy's my favourite.
Step Brothers: The fact that this movie isn't in the top 5 is Amazing I mean when isn't putting your balls on a drum set funny.
Blazing Saddles: I love the scene when they're eating beans and everyone starts farting. Best scene in the whole movie,I can't think of a movie any funnier! After watching this
Borat: It's basically a movie where a jewish comedian pretends to be a character named Borat - an ignorant naive sexist antisemitic, but well meaning middle easterner.
Superbad: Actually I wanted to vote for Zoolander but having watched this a day earlier and laughed a lot I am voting for this.