There are a lot of movies I quote a lot. One movie I always love quoting, "The Godfather".
Sonny: Hey, listen, I want somebody good - and I mean very good - to plant that gun. I don't want my brother coming out of that toilet with just his dick in his hands, alright?
Michael: My father is no different than any powerful man, any man with power, like a president or senator.
Kay Adams: Do you know how naive you sound, Michael? Presidents and senators don't have men killed.
Michael: Oh. Who's being naive, Kay?
For some reason I find it absolutely hilarious that Peter Clemenza's wife says "Don't forget the cannoli!" before he leaves his house. And after he and Rocco kill off Paulie, who had double crossed the family, he says, "Leave the gun. Take the cannoli."
And then there's the Lord of the Rings movies....which I can find a million more things to quote.
"Oh... That's nice. Ash on my tomatoes!"