WHY WOULD YOU TALK AT ALL DURING A MOVIE!
Seriosly, I've gone full out douchebag to people who won't shut the hell up in a theater.
I confess, I come from a family of movie talkers.
We don't talk at the theatre, obviously, because we're not freaking animals. But sit down with my family at home to watch a movie on DVD, and because we're all trivia-afficianados it quickly becomes "Who's that? I recognize him from somewhere."
"Oh he played so and so in _____"
"No he didn't, that was so and so"
"No you're thinking of ______. I'm talking about ______"
"Oh, right, well then who was _______?"
etc, etc.
The worst is my mom though, because she is the sole member of my family who is NOT a movie trivia person, so while we'll talk, as Nick put it "Strategically", and at least about something related to the movie, mom will come in and sit down and start talking about what she had for lunch or something.