The most famous idiom found in a horror movie- well, except perhaps "You scared the shit outta me!"- is "All work and no play makes Jack a dull boy.", the sentence typed over and over by the sneaky Jack Torrance in The Shining. He was supposed to be working on his novel! That's why he refused sandwiches from Wendy, so he could concentrate! Gawd, what a jerk. First he sets up his special "must have quiet" writing area in the main hall, in the middle of everything, then it comes out that he's just been fooling around with typography the whole time.
Anyway. "All work..." may not be a familiar expression outside the shores of the ol' USA- so what was the phrase translated to in non-domestic releases of the film? Check it out!
Mind you, I got all of these from The Internet, and as we all know The Internet has been known to lie (I'm looking at YOU, Nigerian widow who promised me millions of dollars)...but there you go.