This is also something of a myth. There was a trust (that Edison was part of) which monopolized film production, but by the time Hollywood was ramping up their

This is also something of a myth. There was a trust (that Edison was part of) which monopolized film production, but by the time Hollywood was ramping up their patents had already expired. They were really enforcing their monopoly through price and supply controls. The cartel was ultimately broken by antitrust litigation, not IP piracy.