This is something that has bugged me for some time.
You have a movie that has two sides, fighting for whatever reason. = Good.
Both sides come to some mutual resolution and learn to not hate each other. = Good.
Right before the closing credits, all the characters have a dance party instead of an epilogue, or any closing comments. = THE WORST THING EVER.
Seriously, when you have a movie, take the time to write five lines of dialogue at the end. Even if it’s narration, or a Stand By Me style epilogue. But for everything that you hold dear, don’t make your characters just start dancing with each other because you are too lazy to finish the movie.
Notable examples: Shrek, Gnomeo and Juliet, Despicable Me, Tropic Thunder. I’m sure there’s more, but I try not to watch bad movies.