I know it shits me when people talk, or munch food loudly during movies, but this is really taking things to extremes.

James Joseph Cialella Jr, 29, was charged with attempted murder, aggravated assault and weapons violations for shooting another film goer in the left arm.  Cialella was furious for being disturbed while watching The Curious Case of Benjamin Button.  He had asked the family to quieten down, then threw popcorn at the boy, which escalated into a physical argument with the father, during which Cialella pulled out a handgun (this being America where it is the done thing to carry a gun to the movies) and shot the father in the arm.

He then sat down and continued to watch the movie.