If I were ever to open a business, it would be an adult-only theater and each theater would have copper-wire coiling in the ceiling so that no cell phone would even attempt to work. Also, I would not sell tickets after the movie had already started, so no asshole would be walking infront of you, trying to find seats, making you miss important shit.
Also, there would be space behind the last row of seats for a couple ushers to stand. If anyone was being overly disruptive, they would be thrown out.