"Ha ha ha. That's not a knife. [Draws his.] *That's* a
knife." -- Crocodile Dundee

"Insanity runs in my family... It practically gallops."
-- Arsenic and Old Lace

"That's funny, that plane's dustin' crops where there ain't no crops." -- North by Northwest

"The course of true love..."
"...gathers no moss." -- Philadelphia Story

"Now it isn't that I don't like you, Susan, because, after all, in moments of quiet, I'm strangely drawn toward you, but - well, there haven't been any quiet moments." -- Bringing Up Baby

"American millionaires must be all quite mad. Perhaps it's something they put in the ink when they print the money."
-- How to Steal a Million

"Bonjour, mesdames et monsiuers. Yesterday we have learned the correct way how to boil water. Today we will learn the correct way how to crack an egg. Voila! An egg. Now, an egg is not a stone; it is not made of wood, it is a living thing. It has a heart. So when we crack it, we must not torment it. We must be merciful and execute it quickly, like with the guillotine." 
-- Sabrina

"You don't have to act with me, Steve. You don't have to say anything and you don't have to do anything. Oh, maybe just whistle. You know how to whistle, don't you, Steve? You just put your lips together and... blow." -- To Have and Have Not

"Don't listen to her, she's not herself..."
"Oh?  Then who is she?" -- To Have and Have Not

"You don't like it, do you Rocco, the storm? Show it your gun, why don't you? If it doesn't stop, shoot it." -- Key Largo

"Only by interrogating the other passengers could I hope to see the light, but when I began to question them, the light, as Macbeth would have said, thickened." 
-- Hercule Poirot, Murder on the Orient Express

Beddoes: Oh, yes, sir, the Italian gentleman.
Hercule Poirot: Eh, does he speak English?
Beddoes: A kind of English, sir. I think he learnt it in a place called Chicago. -- Murder on the Orient Express

I'll be back! -- The Terminator

To be or not to be? Not to be. -- Last Action Hero

Nick: There are lots of things worse than movies: politicians, wars, forest fires, famine, plague, sickness, pain, whores, politicians...
Jack Slater: You already mentioned them.
Nick: I know I did. They are twice as bad as anything else.
-- Last Action Hero

Hasta la vista, baby. -- Terminator 2

Thank you for the cookies. I look forward to tossing them.
-- Twins

Dave Bowman: Open the pod bay doors, HAL.
HAL: I'm sorry Dave, I'm afraid I can't do that.
-- 2001, A Space Odyssey

Julianne: I'm pond scum. Well, lower actually. I'm like the fungus that feeds on pond scum.
Michael: Lower. The pus that infects the mucus that cruds up the fungus that feeds on the pond scum.
-- My Best Friend's Wedding

"Dance with the devil, the devil don't change, the devil changes you." -- 8 mm

"Have we met?"
"No, this is my first time in the twilight zone." -- I Love Trouble