Ferris Bueller's Day Off
The scene with the clarinet. Classic.Son of Rambow
Not quite a true blue comedy, but I love it for its comedic moments.Mr. and Mrs. Smith (1941)
Yes, Alfred Hitchcock can make comedy movies. And they're good.Napoleon Dynamite
The fact that people still continue to quote this movie in casual conversation says it all.Monty Python and the Holy Grail

So silly yet so smart.
Sixteen Candles
Because we all want Jake Ryan.Better Off Dead
Before John Cusack was super famous.It Happened One Night

