Most people would use these tools for personal use, if nothing else. Seeing a celebrity, themselves, their friends, etc., act out any scenario they can think of is quite an appealing proposition. And porn, of course, for better or worse.
In the long-term, this has the potential to significantly change how media is created and consumed. Feature films produced by large studios will undoubtedly continue to exist, and they will also leverage the technology, but it's not difficult to imagine a new branch of personalized media becoming popular. The tools are practically already there; they just need to become more accessible, and slightly better.
> Most people would use these tools for personal use
Not what we're talking about. Not "personalized media", not large studios "leveraging the technology", not "visual effects".
See: "blockbuster movies produced by a guy in his basement for <$1000".
There is no line, and you never claimed there was in your original comment, so stop moving the goalposts. Vague language like "personalized media becoming popular" is not the same thing as "blockbuster movies".
Calling my answer "short-sighted" when you couldn't be bothered to read the thread or apparently even the thing I was replying to is, in fact, on you.