They are unable to sit still for two hours without eating, talking or going to the bathroom. their weapons include noisy candy wrappers, perpetual cellphone conversations and whining about how they don't know what's going on in the movie because they spent the first half of it eating, urinating and talking on the phone.
Popcorn flickers have recently started attending live theatre performances. Thankfully, the house policies of no entry after the performance has started and no food in the auditorium keeps them to a minimum. For now.
John: "Hell no Suzie! It's Saturday afternoon. The movie theatre will be full of Popcorn Flickers"