“My recipe for making movies has always been to give an audience two or three really top-notch scenes in every film and to try not to annoy them the rest of the time. If you can do that you will have made an entertaining picture.”
Producer/director Howard Hawks (Red River, Sergeant York, His Girl Friday)
Talk at Chicago Film Festival
via The Movie Makers: Artists in an Industry by Gene D. Phillips
Here are two memorable scenes with Howard Hawks connections. The first is from the film The Big Sky (1952) which Hawks directed, and the second film is Scarface (1983) directed by Brian DePalma from a script by Oliver Stone. After seeing the original Scarface (1932) which Hawks directed, Al Pacino set theings in motion to star in a modern retelling of the story.
Screenwriting from Iowa 
I remember reading that Jack Nickelson saying something to the same effect. That if there were three great scenes in a script, he’ll say yes to it.
I can see Jack reading the script for “A Few Good Men” and saying to himself, “You know, this scene where I say, ‘you can’t handle the truth is pretty good.'”