Lot of potential for movies- using AI to up res, AI to turn a 2d movie 3d, more advanced would be new or edited scenes. Or how about translating a live action movie to a cartoon and vice versa. Or a different style or tone. Run The Lord of the Rings through a cyberpunk filter.
I'm eager for someone to start recreating the missing episodes of Doctor Who. The audio still exists and there are publicity shots from many of the missing episodes