Rom-coms have happy endings. That fact is such a given that it’s often preemptively held against the genre. Why see a movie when you already know exactly how it’s going to end? It’s ironic, then, that one of the most beloved rom-coms of all time challenges the very nature of what we want from a happy ending. The all-around delightful My Best Friend’s Wedding—more so than maybe any other romantic comedy—benefits from not knowing exactly where things are going.