"I'm the guy who does his job. You must be the other guy." ...be honest. How many times have you stolen that line?
"What we've got here is failure to communicate." I would also like to add that Paul Newman was one sexy bastard. Oh, and I couldn't find a good video but another one of my favorite lines from that movie is "I'm just standin' in the rain, talkin' to myself." This is the best youtube dealt me this evening and it cuts off the line:
Here's another Eastwood classic; And in fact, a nice collection of ones from Dirty Harry, although they omitted some of my favorites;
Maybe not technically a one-liner, but I'm a fan of "Maybe...maybe not...maybe fuck yourself" as a response to just about any question.
The irrepressible Chuck Norris in Code of Silence -- at the very beginning of this clip: Bar Patron: "Hey, you don't want to be in here" Chuck: "If I want your opinion, I'll beat it out of you." [The embedding did not work] <a class="postlink" href="http://www.youtube.com/watch?v=BEoFOqBGrUE" onclick="window.open(this.href);return false;">http://www.youtube.com/watch?v=BEoFOqBGrUE</a>
I can't find a youtube clip, but two of my favorite lines of all time are from Office Space. "I did absolutely nothing, and it was everything I dreamed it could be." "It's not that I'm lazy, it's that I just don't care."
This is from a book, but I don't want to start a new thread: From Stephen King's Dreamcatcher- "Seeing a person shot in the head in cold blood takes a lot of 'fuck you' out of a man."
"And you wanna be my latex salesman" or Elaine: "You know that just admitting a man is handsome doesn't necessarily make you a homosexual." George: "It doesn't help"
Archer has been an excellent source for one liners. I've been using this one no matter what the context. Those who catch it always bust out laughing.