It’s also worth mentioning that she was kept on a strict regimen of cigarettes and coffee so she would lose weight, and the producer(?) forced her to sit on his lap so he could grope her. I wouldn’t be surprised if there was a lot of other abuse as well. She was married five times, and died of an overdose before she was 50.

IIRC the original actor who played the tin woodman suffered serious health effects from the makeup they used, as did Margaret Hamilton, the woman who played the Wicked Witch of the West.