Isn't this lived experience baked into LLM language bases? It's certainly very hard to target all possible populations at once. And art doesn't need that, doesn't do that. Only rare marketing sometimes attempts to do that and only in very limited ways, such as a brand name acceptable all over the world.
The prompt: "Create a feature length [Action/Comedy/etc...] film that can borrow elements from existing films, but would generally not be considered a copy of any given film."
You could use a larger corpus, like auction house files and art magazines. But then you are confounding for celebrity - a large ingredient in art prices.
You can get very mechanical in scoring an image. Ask any art student. If you want to or if your instructor or audience wants to. For example "fits rule of thirds?" yes is a point to common attraction, no is a point to unexpected at the risk of outsider-ness. You can do that in color, composition, recognizing objects and fitting that to memes or associations or non-associations. Too many points in "unexpected" is meta points in "unpleasant chaos" and so a strong downgrade in common attraction. You can match all this to images in the library (see how copyright or song recognition operates in the music category) and get out of that some kind of familiarity vs edge score (where too much edge goes against common attraction.)
I would expect you could get better than most humans at recognizing shapes in an image and drawing associations from that. Such associations are a plus in unexpected / surprise if they are rare in the culture or a plus in common attraction is they are common.
After that, to be cynic about it, you can randomize and second guess yourself so your audience doesn't catch on the 1st level mimicry.
Creativity is not normally used as an absolute with a unique measure. It's not "length". And you only need to please part of the audience to be successful - sometimes a very small part, some of which loves surprise and some hates it, etc. Someone elsewhere objected on the grounds that creativity or attractiveness is culture based - yeah so? if you were to please much of just one whole culture, you would have an insane hit on your hands.
Sounds feasible to me.