I think I walked out of a movie once. I can't remember it though. Must of been so bad I can't remember it.
I did fall asleep for a whole hour of Pearl Harbour. I woke up when Pearl Harbour was being attacked. That whole love story thing I missed.
I thought it was a great film until I saw all of it.
As far as Star Wars prequels go I saw Episode one 7 times at the cinema purely because of Darth Maul. First time I missed the fact he was cut in half. I just thought he fell into the whole and would be back for the sequel. Disappointing he was not in all three.I saw Episode two 3 times. Different people wanted to see it with me. Episode three I saw once.
I enjoy the space battles the most and the prequel trilogy was lacking severely in that department. So many lost opportunities with space battles.