Back to the thread subject, 2 of my favorites are actually from Disney movies:
From Aladdin:
The Genie (Robin Williams) when he gets set free at the end of the movie: "I'm history! No, I'm mythology!"
From live-action "101 Dalmatians" (w/ Glen Close as Cruella deVille)
Cruella: What kind of sycophant are you?
Aide: Uh, what kind would you like me to be?