haha Go Jackie Chan!! Shanghai Noon, I'd say... and someone said Boondock saints , that's a good one too..
Go with the South Park Movie so everytime you get in here you will hear "Blame Canada" in the back of your head
lol , You do know that song is making fun of Americans, right?
Speaking of which, if it's out on DVD yet (I don't know when it comes out) but Bowling for Columbine was good. It's not a complete comedy, but it's a REALLY good documentary with quite a few funny parts. [Anyone who's seen it: Did you have a lot more respect for Marilyn Manson as opposed to Charlton Heston, or was it just me??] Or The Big One!
Ummm... Haha Big Bully is a good classic one.
GHOSTBUSTERS! Yeaaa! HHHHMMmm.... other funny ones.... I can't think of anything else... If I remember, I'll let you know.