[NCC-1701]

J.R. McCready: Come on, burn me Childs, burn me. Now put those guns on the floor and back off. Way off!
Childs: "You've got to sleep sometime, McReady"
J.R. McReady: "I'm a real light sleeper, Childs"

Exchange from "The Thing" (Remake)

[So Cal Rocket]

WAY more than 15 years ago, but it's still my favorite:

"In Italy for thirty years under the Borgias they had warfare, terror, murder, bloodshed - they produced Michelangelo, Leonardo da Vinci and the Renaissance. In Switzerland they had brotherly love, fire hundred years of democracy and peace and what did that produce…? The cuckoo clock."
--The Third Man, spoken by Orson Welles, Director

[job]

Along with Kurt Russell, here are a couple from Tombstone:

Billy Bob Thornton: "I swear to G-d its like I'm playing cards with my sister's kids."

Kurt: [Paraphrase] "Come on, boy, skin that smoke wagon and go to work..."