...will definitely hear around here that you should have The Big Lebowski on your list. No movie list is complete without it.
As for TAWP, I love the theme song...Quite inappropriate or appropriate however you want to look at it, but funny nonetheless.
My list in no order:
1. The Big Lebowski
2. Dumb and Dumber
4. Black Sheep (there are funny parts)
5. Team America World Police