There will be some creative people that can now tell stories they couldn't before with AI, but I think by and large the major use case is to create short form video clips to get attention on the internet (advertising). I don't foresee a "movie" (meaning narrative story told via visuals and sounds in 1-3 hours) renaissance happening, in part because I think the form is fully mature and there's not really much more that can be done with it. It's essentially gonna be where Jazz music is today in 40 years, it will have its fans, and there will be talented practitioners, but every year it will be more and more culturally irrelevant.