I thought about this as well but I think research activities and such might be qualitatively different, at least for now. Movies are merely looking to please our senses, on the other hand, researchers look for truths and facts about the world. It's okay to have movie visuals not based on reality, but it's usually not okay to have non-factual research.

Also, no one is going to force actors and movie studios to go full AI and those who wish can stay with the old paradigm. It will be up to customers to decide where their money goes. However, if AI allows for the same or higher quality and more creative freedom at lower costs, I'm pretty sure the old ways will get outcompeted.