I've had stuff of mine adapted by other people, so I've come to the conclusion that a movie is a different form from a novel and there is no such thing as a true adaptation. You have to adapt to this other thing and do it right. But that voice of the original should somehow still be there, and the original intent should still be there. So if the original writer saw the movie, the writer would say, "Well, that's not what I wrote, but that's what I meant." And if you can do that, I think you've done your job as a screenwriter.
Donald E. WestlakeI start with the story, almost in the old campfire sense, and the story leads to both the characters, which actors should best be cast in this story, and the language. The choice of words, more than anything else, creates the feeling that the story gives off.
Donald E. WestlakeA grifter's got an irresistible urge to be the guy who's wise. There's nothin' to whipping a fool. Hell, fools are made to be whipped. But to take another pro. Even your partner, who knows you and has his eye on you. That's a score! No matter what happens.
Donald E. Westlake