The screening usually includes a bag check and quick wave from a metal detector wand. Plus, some screenings do not allow cell phones in the theater, so you may be required to check it at the door (just like a coat check.) Be warned, if you’re seen using your cell phone during the movie, you will be asked to leave the theater immediately. Trust us, we’ve seen it happen more than once. It’s embarrassing for you and frustrating for everyone else. Our best advice is to just leave your cell phone in the car.