a movie where Iron Man enters a mini-golf tournament with Genghis Khan and the 1927 New York Yankees

Don’t give them any ideas LOL.

Overall, I think you’re completely correct. So far consumer LLMs cannot come close to anything a human writer can create, but I’m concerned that Hollywood would gladly take the hit on quality to save on writers. I hope the strikes succeed in preventing AI from entering the writing and acting space, but hopefully they don’t need to make concessions to prevent it.

As an aside, if everyone could create their own movies with AI, I wonder if studios would simply become IP holding companies (more than they already are). Anyone could make Lethal Weapon 5, but only the studio with the likeness rights (and training data) of Rob McElhenney would be able to have it look like the original actors are present.