They say there are no such things as happy endings because nothing ever ends, and by “they,” we mean Peter S. Beagle. God, The Last Unicorn is so good. And he was right: Follow that unicorn for 30 more seconds, after she’s met up with the others she’s just saved, and she’d be like, “‘Sup, guys, how are we feeling about grief and remorse these days?” and they’d be like, “Ew, you smell impure,” and ostracize her.
And that’s true of most movies. Just keep the cameras rolling for a few more seconds, and the impending consequences of the hero’s daring acts sink in or they go back to their boring old life or the conversation just gets really awkward. So when user Wazula42 asked r/AskReddit, “What movie endings would be ruined if the camera kept filming for an extra 30 seconds?” the answer was pretty much all of them.