In 10 years from now (2035), how much of the work do you think AI will do in high quality movie/TV production?

There’s a huge gap in the poll between “Everything” and “One person does it”. For a high quality movie you need a lot of different experts.

The real question in my mind is: Can a given creator produce more (at the same quality level) by prompting, filtering, and editing or by creating?

If the answer is the former then you can pretty much expect more movies to be made for cheaper by fewer people with roughly the same level of quality.

I completely agree (and the answer is none of the above). Instead of hundreds of people, a dozen will be enough for the entire pre-production, production and post-production cycle of a high-quality movie. A blockbuster production with the cost of an indie film. Or at least the human resource cost, because there's no guarantee the actual cost of AI will be that cheap.