>If people weren't watching movies, they maybe would be watching people in theaters, which is a plus for me though unlikely.
If movies somehow suddenly became magically unavailable in society, I think it's a certainty that people would be watching live theater like 100+ years ago.
However, the total amount of viewing would be far, far less. People today spend lots of their free time watching movies and TV shows (many of which, these days, are better thought of as multi-volume movies). Take all that away somehow, and people will go back to the really old days before the invention of cinemas, where they occasionally watched a (live) show/play at a theater, but it was certainly not a frequent activity, maybe (guessing) once a week at the very best if they were middle-class or higher, certainly not every night, and probably more like monthly.
So the total amount of economic activity that would be generated by this magical elimination of TV/movies, resulting in better careers for stage actors, musicians (assuming the Great Movie Disappearance also magically eliminated recorded music from plays), and playhouse owners would be dwarfed, I think, by the huge loss of economic activity from all the people in the various businesses of movie/TV entertainment. I could be wrong though, but considering Hollywood entertainment and TV is a huge economic driver in the US today (despite piracy), and playhouses and plays were not a huge economic force in the US in the late 1800s, I think my assumptions are correct.