"I'm the negotiator." *BLAM* "Anybody else wanna negotiate?"
- The Fifth Element

"Why did you have to come here?" "Have you seen the soil out back here? I just moved in and I've already got these little tomato plants..." "OH MY GOD!"
- The Whole Nine Yards

"I'd hate to have to kill you. I'd hate it more than mayonnaise, and you know how much I hate mayonnaise."
- The Whole Nine Yards

"There's something very important I forgot to tell you. Don't cross the streams." "Why?" "It would be bad." "I'm fuzzy on the whole good-bad thing. What do you mean, bad?" "Imagine all life stopping instantaneously and every molecule in your body exploding at the speed of light." "Right, that's bad. Important safety tip there, thanks Egon."
- Ghostbusters

"Do you believe that's air you're breathing now?"
- The Matrix

"There is no spoon."
- The Matrix

"What do you need, besides a miracle?" "Guns. Lots of guns."
- The Matrix

"Dodge this."
- The Matrix

"Your arm's off!" "No it isn't." "Look!" "I've had worse." "You liar!"
- Monty Python and the Holy Grail (That entire scene is great. I'm gonna make a friend follow me around campus performing it with me one of these Halloweens. :)

"'elp, 'elp, I'm bein' oppressed!"
- Monty Python and the Holy Grail

"What...is the airspeed velocity of an unladen swallow?" "What do you mean? African, or European?" "What? I don't know that! AIIIIIIIEEEEEEEeeeeee......"
- Monty Python and the Holy Grail

"Your mother was a hamster, and your father smelt of elderberries!"
- Monty Python and the Holy Grail

That's all I can think of at the moment. I may be back with more later. :)