I don’t think I’ve ever laughed so hard as I did when watching the donkey scene in Clerks 2.
Pulp Fiction had me cracking up in certain parts.
Wonder Boys- there was just something funny about Michael Douglas’ character.
I was always a fan of the Cannonball Run movies and even It’s a Mad Mad Mad Mad World. I guess something about a cast of carcrash crazies chasing after a prize just cracks me up.
Something about Mary
Finding Nemo
History of the World Part I
Corsican Brothers... just the line “Come back! You forgot to whip me!”
Monty Python’s Meaning of Life
You might want to check out the original Death Race 2000, with Sylvester Stalone and David Carradine. It was a satire written by Charles Griffith, the same guy who wrote Corman's horror-comedy trilogy: A Bucket Of Blood, (the ORIGINAL) Little Shop Of Horrors, and Creature From The Haunted Sea.
The cross-country road race thing was tackled in Gumball Rally (also a comedy) and Cannonball. I think Caradine was in Cannonball before Death Race 2000 and I think they all pre-date Cannonball Run.