Monty Python and the Holy GrailPlease add other Adventure/Comedy/Fantasy films to this list.
Willow
The Adventures of Baron Munchausen, Jabberwocky, Princess Bride, Yellowbeard, and The Pirate Movie.
Excaliber
My favorite is the "Life of Brian". It's Monty-P at their best.
Pans labyrinth if you can deal with subtitles....or can speak Spanish.
Krull
Legend