Disclosure is brand, not only law
Jurisdictions differ. Audiences already detect “BS,” especially where the product is care, news, or money. Labeling synthetic work is often required. It is always a taste decision: if the brief was truth, a synthetic witness is a lie even when legal.
Style as theft versus reference with a job
“In the style of [living artist]” is a spell and usually a theft of labor. “Window light from the left, documentary, hour 9:20” is a function. Directors choose the second in public and the first only by accident when they are tired. Tired is not a defense.
Put it in the bible
No living likeness. No documentary claim if staged. No invented testimonials. The negative list can be ethical, not only aesthetic. If it is not written, the pipeline will not remember.