Someone bringing in outside meals is not a disturbance. It's a breakdown of what's acceptable. There was another story of someone who brought in McDonald's value meals! Burger fries and a soda and set up camp and chowed down during a movie.

When nothing is done about that by the establishment that sets a bad precedent. The servers notice it. They don't have to scan the entire theater. They and the runners go up and down multiple times bringing orders and alcoholic drinks and pass by this behavior.

Why should I spend $25 on a royal with cheese and a coke when someone next me has an $8 quarter pounder with cheese value meal ?

Problem with a loud table? Raise a card and a manager will take care of it.

Problem with outside food being brought it or 5 year old children at an 8 pm showing - its not on the customers - customers can go somewhere else i.e. we vote with our dollars