If you look at music recording, there was a time when it required a dedicated multimillion dollar multi-track studio with effects and a team including engineers and producers to make and distribute an album. Now individuals and bands can do that on their own. Yes, studios and record companies still exist and control the top selling artists but independents can and do get themselves out their using readily available and relatively low cost hardware and software. I suspect AI movie production will go the same way. There will an underground of independent movie makers writing and producing films without actors or sets. They will create the story and the script and then curate the AI to turn the story into a movie.