I kinda like the idea of the Theater seat button.
There are other cases where they need someone to check things out after the films starts rolling. A couple times the camera wasn't centered, another thre real seemed to be off, and another time the sound was low. You would keep hoping someone in the projector room would notice, but there is nobody in the projector room after things get started. Then of course you have the cell phones, babies, and other non-sense going on in the theater.
I'm sure the theater wont like it as some clown will push it continually just to see employees come running in. Maybe the system will also tell the seat number, but that wont help them as they could just push an empty seat button.