[Vaquero]

John Wayne didn’t resemble Genghis Khan, but that didn’t stop the casting director!

An inordinate amount of the cast/crew of that movie got and/or died of cancer as they filmed not far down wind of the Nevada test site and they tested a bomb/bombs during the filming.

[SoCal Pubbie]

Yeah, I’ve heard that. Apparently the validity of the claim is in dispute.

https://www.gasdetection.com/interscan-in-the-news/magazine-articles/movie-conqueror-really-cursed-look-radiation-paranoia/