Those who urge you to clamp your puppy's mouth shut, throw objects or spray them in the face may mean well, but they are employing cruel, outdated punishments that serve to scare and not instruct your puppy.
How about we just watch the movie? Park the popcorn. Ditch the Milk Duds. Turn off your cell phone. Sit back, relax and enjoy the show. You will find when you exit the theater there will be no popcorn crumbs all over the front of you, nor empty candy boxes and soda cups surrounding where you sat.