Happy endings are only stories that haven't finished yet.

The line treats “happy endings” as a matter of narrative timing rather than a stable state. It suggests that any apparent resolution is provisional: life (and stories that mirror it) keeps generating new complications, losses, and reversals after the credits roll. Read this way, the quote is both skeptical and sobering—warning against complacency and the fantasy of permanent closure—yet it can also be motivating, implying that setbacks are not final either. Its meta-storytelling angle fits a screenwriter’s sensibility, reframing happiness as an ongoing process rather than a definitive endpoint.