By "reserved seating", do you mean the complete BS practice of selling out all the tickets to a film ahead of time so that there's no room at the inn for me when I'm the only person in the fscking building? Because that has no place in a movie theatre setting -- that only makes sense for live events, like a concert or play, where there are professional performers whom you have to make enough money to pay a specific amount to those humans; films, however, are already paid for n showings or a percentage of the ticket price -- I'm not entirely sure, but I've seen movies where I was the only person in the cinema, and they still ran the thing, so it has to be worth doing, and you don't need to sell out the house beforehand to make it worth showing a movie.
A movie theatre should be a place you can go to when you have an hour and a half to spend, and they accommodate your $20, not something you have to plan three weeks ahead and hope you can get a vacation day for -- because it's a passive, prefab entertainment (unlike a football game or a comedian) that I can get the same exact same thing out of by watching it at home (it's McDonald's, not Morimoto).