From V for Vendetta:
"The only thing you and I have in common, Mr. Creedy, is that we are both about to die...with my hands around your neck."
"Bollocks. We've swept every inch of this place. You've got nothing, nothing but your bloody knives and your fancy karate gimmicks. We've got guns!"
"No, what you have are bullets, and the hope that when you've used them all I'm no longer standing. Because if I am, you and your men will all be dead before you've reloaded."
I ultimately prefer Moore's less sympathetic, more psychotic V, but the film's V has just as many badass moments, and this one tops them all.
Also, I've always found this defiant monologue to be the most badass thing Tyler Durden ever said:
"You have to consider the possibility to that God doesn't like you. He never wanted you. In all probability, He hates you. This is not the worst thing that can happen. We don't need Him! Fuck damnation, man, fuck redemption! We are God's unwanted children? So be it!"