Some friends of mine were checking out a screening of No Country For Old Men in Toronto a week or two ago when two senior+ men behind them starting making odd noises. They realized one was on the phone, whispering something and initially thought they were just being rude. But then they noticed one man appeared to be in severe pain, and that the other man was calling 911. He had had a heart attack. With Javier Bardem after Josh Brolin at that motel in the background, the audience slowly realized what was going on and the man was helped, with the movie still playing in the background. Eventually the theatre staff were informed and the movie was shut down… The man was taken to the hospital (and appeared to be conscious and ok).