Why is there a vibrating lock in a movie theater?

Pop lock is a little-known security feature in movie theaters that locks down the door and locks it to the cinema.It is only available in theaters that have a locked-down cinema door.In the movies, a remote control can be used to activate the lock and lock the door, so you won't be able to open it from outside the movie theater.You'll have to get a special ticket to get into the theater.The ticket...