If you’re ever in doubt about how to end your story, think in terms of a positive ending. We’re talking Hollywood here, and I think the purpose of art, or entertainment, is to entertain. That doesn’t mean that everybody lives happily ever after, but that people walk away from the theater uplifted, fulfilled, spiritually aligned with their own humanity.

— from the chapter “Story and Character” in Screenplay: The Foundations of Screenwriting by Syd Field