I watched Cocktail last night for....reasons mostly involving Bryan Brown please don't judge me
The scene where Tom Cruise makes an entire bar of people listen to him wang on about cocktails in poem form forced me to hide behind a cushion as I was cringing so much. PARTICULARLY when he said the word "snazzy" in what I assume is meant to be a posh English accent 
at which point I had to leave the room.
Hit me with your other cringe moments in film!