Comedy, moreso than any other genre, is so varied from person to person. In the same way it's hard to find a horror that will scare you after you know the secret, it's almost impossible to find a comedy that will make you laugh after you know the punchlines. What tops your list? These 5 make me laugh hysterically even though I've seen them 100 times:
I have to give an honorable mention, also, to EuroTrip just for the song "Scotty Doesn't Know". Funniest running gag in a movie ever. Also my favorite screen time for Matt Damon ever! "I did her on his biiiirthdaaaaay..."
I know, this is a hard one. I had to leave off Life of Brian (thiiiiis close to knocking off Blues Brothers) and, believe it or not, Grumpy Old Men1 and 2. Walter Matthau and Jack Lemon still have it.
Yeah, I just realized I left Preston Sturges off my list, and there's five (six, really) of his movies that make me laugh every single time. He could have had all the spaces.