This is probably my favorite movie of all time, comedy or otherwise. I haven't seen a huge amount of movies - I'm more of a music guy myself - but here's one that I keep revisiting. It's one of those rare comedies (at least according to my rather limited experience) where literally every gag not only succeeds, but succeeds wonderfully. This is easily up there with classics like Airplane! and Young Frankenstein, and something tells me it might be even better.