The Wizard of Oz is one of my favorite movies. I've watched it so many times that not only do I know all the words to all of the songs, but most of the dialogue as well.
Sidenote: have you ever wondered where the red-bricked road out of Munchkin Land goes? It's one my great unanswered movie questions.
Anyway... My favorite exchange between Dorothy and the Scarecrow is just before she lets him down off of his pole.
Dorothy asks: ...can't you make up your mind?
Scarecrow: I can't make my mind. I haven't got a brain--only straw.
Dorothy: How can you talk if you haven't got a brain?
Scarecrow: I don't know. But some people without brains do an awful lot of talking, don't they?
So. Effing. True.