Give me a few days.
Researching and analyzing whether or not the entertainment (and other industries) can figure out how to use hypothetical driven AI (it‘s being used by the Mayo Clinic).
In the meantime, when it comes to building your LLM, you can use a:
large LLM (large language model) AI service from OpenAI etc or
smaller LLM model from Microsoft: link
Expect to see more companies opting for the small LLM to build their AI model.