Theater in New York is nearer to the street. In London, you have to go deep into the building, usually, to reach the place where theater happens. On Broadway, only the fire doors separate you from the sidewalk, and you're lucky if the sound of a police car doesn't rip the envelope twice a night.
There are certain sorts of jokes which have only to do with the substitution of the unexpected word in a familiar context. If you translated something into French and then had it translated back into English by somebody who didn't know the original, you'd lose what was funny.