"kung pow" is without a doubt the funniest movie ever made.
here's some others i love:
- it's a mad mad mad mad world
- young frankestein
- pineapple express
- the birdcage
other than that, monty python movies are great. "the holy grail" and "life of brian" are hilarious.
and he may be a pedophile sick-bastard, but woody allen makes some really funny movies. "annie hall" is the best one, but all his other movies are pretty watchable. i mean, i catch them everytime i see one on tv.