Monty Python and the Holy Grail
Life of Brian
And now for something completly different
Dr. Strangelove
The Party
Any movie with Mystery Science Theater 3000
Duck Soup
Blazing Saddles
The Producers
High Anxiety
Sleeper
Kung Pow (uh... part of that movie)
The Birdcage (the american version)
As Good as it Gets
All the "Naked Gun" movies, including the series
Groundhog Day
Happy Gimore
Brain Dead (Peter Jackson's best movie)
Truman Show