There are a lot of insane things wrong (and right) with The Room, but this one is extremely puzzling. During the “I did not hit her/Mark” dialogue on the roof of Johnny’s apartment, the scene was actually shot on a set, with a green screen, and the city was added in afterwards.

Except the set itself was a recreation of the actual rooftop of Tommy Wiseau’s apartment building, with a very similar view. So what was the point?