Wats the funniest movie ever?

im bored so i want to see a really funny movie but i dont no which movie to watch so could u guys help me out and tell me wat is the funniest movie u guys saw and wen u guys tell me the movie could u guys tell me the actors that play in the movie anyways thanx :) (remember tell me the actors who play in the movie for example (high school musical vanessa hudgens,ashley tisdale,zac efron etc..)