I'll go first. Mine is that I can't stand the Deadpool movies. They are self aware and self referential to an obnoxious degree. It's like being continually reminded that I am in a movie. I swear the success of that movie has directly lead to every blockbuster having to have a joke every 30 seconds
That "The Man from Earth (2007)" is the best movies there is. I recommend it to people all the time but no one seems to realise how profoundly interesting it is. And it doesn't need any scenery or special effects. It's literally just conversation and dramatic music, tuned to perfectly tell a story that touches on many philosophical questions. I just love that film.