I've seen a lot of really stupid things happen in movies over the years, but I think the worst was probably World War Z. When they're rescuing the scientist, and he shoots himself on accident. This dumbass tripped running up a flat ramp, and then accidentally shot himself in the head. Idk why I thought of this and decided to post it. Just bored I guess. How about anyone who reads this replies with the stupidest thing they've seen in a movie? Edit: A lot of good responses. Another thing I would pick is the entirety of the Percy Jackson movies. Probably the worst book adaptations ever.