Content Warning
Dorothy Fontana (I think) told a funny story about the #StarTrek TOS Orion slave girl and her green makeup.
No one had told the film editor that the girl was supposed to be green. So when he first saw the film, she wasn't very green at this point, he color corrected until her skin color looked better.
Director saw the result, and she wasn't green at all! So they redid the makeup to make it even more vibrantly green.