What is the funniest or most bizarre act you've ever seen from other people while sitting in a theater?
My most memorable incident happened during Sherlock Holmes. During the entire previews and for the first 5 minutes of the film, a woman was loudly talking on her cell phone, at full volume. A few people starting shushing or yelling her to "shut the fuck up". The gentleman sitting next to her asked her three times to hang up the phone, to which she responded "Fuck you asshole. I'll do what I want". He proceeded to stand up, grab the phone out of her hand, and throw it as hard as he could across the theater, causing it to shatter against the wall. In the back row, where I was sitting, all you could see was the light from the phone soaring across the theater. The audience proceeded to applaud, and the woman got up and left to get security. When she got back with security, the man had moved seats and no one in the theater said anything to expose him.
I wish I could have shaken the mans hand.