Monty Python and the Holy Grail.
Almost all the best quotes ever are from Monty Python, and the Holy Grail is, well, the Holy Grail of hilarious movie quotes. Here, my dear readers, are my absolute favorite quotes from the movie:
We require... a SHRUBBERY!
The Holy Hand Grenade
Fetchez la Vache!
I'll bite you kneecaps off.