I think it depends. If it doesn’t matter to the overall project to have it perfect, then as long as AI is good enough it will be used more often than not. That’s why I’m laughing at writers who are all in on forcing the idea of “save the cat” forcing every story ever done to fit a single structure. AI can do stuff like that super easy. While it probably can’t make a great arty movie it can absolutely churn out formulaic crap easily and cheaply. And as long as people choose formulaic crap over arthouse cinema (which they reliably do) AI will take over most film jobs and make do with whatever minor inconsistencies and inconveniences that AI introduces to big blockbusters because it’s not like anyone goes to a marvel film to gawk at cinematography. As long as your film franchise is McDonald’s levels of formulaic, and that’s what your fans expect , there’s no reason to waste money on expensive humans.