I am definitely with "Robin Hood, Men in Tights", "Young Frankenstein" (or should I say Frahnkenshteen), and yes I agree with "Dumb and Dumber", what can I say? LOL.
Man, there are so many funny movies out there but if I had to list a couple of my favorites it would be a combination of some older and some newer:
Space Balls <---- oh yeah, I said it
Old School
Caddyshack
Superbad
South Park: Bigger, Longer, and Uncut
And I have to say, Kung Fu Panda had me laughing so hard when I took my daughter to see it that I thought I was going to choke to death.
XII