Indian police pinpoint seat of movie camming pirate by analyzing the film angle
torrentfreak.com
torrentfreak.com
The method worked.
Of course, it worked well most likely because the angle was extreme enough to narrow it down to a small set of seats. But it is also true that cammers would not dare to record it from a well vantaged location for the fear of being called out.
Also, if the public knows that one is not safe even if there are no CCTVs, then piracy may be reduced.
If the film is not popular, why bother.
If you want to wait for the film to run through until the theaters are empty, why bother as it will definitely end up on some streaming platform, and someone will upload a 4k quality torrent.