Given the latest court ruling in March that AI works can't be copyrighted, this makes a lot of sense. The movie itself can't be copyrighted if it uses AI (although there is still some unresolved issues around how much AI).
Hah, no. Just because AI was employed in the production to some extent doesn't mean it can't be copyrighted. It is not so black and white. You are not describing the situation accurately.
Which is really the crux of the issue.