Who likes a bright light blaring in their peripheral when they're trying to enjoy a movie? NO ONE. That's who.
Here's a PSA for movie goers to turn off their phones when they're about to enter a movie theater. This would be a great opportunity to create an app that detects you're in a theater to which this augmentation will pop up to tell you to TURN OFF YOUR PHONE!
Clip courtesy of CineMode - https://www.youtube.com/watch?v=aeXkJ88pgEc