I suspect well run theaters could maybe make it on box office, but it's the concessions which make the real dollars. The mark up (maybe 10x?) is where the gravy in the business comes from. --- I'm more familiar with how a bowling alley is run. I was an acquaintance of a fairly large bowling alley manager. (32 lanes) And he said that he was thrilled to break even on the bowling. It was the concessions, especially the beer, where the profit was made.