yes he did!
The John Wayne movie on Genghis some people claim it contributed to Wayne’s death. Either gave him cancer or contributed to his cancer. Also there is a claim that many of the principals in the move also died “prematurely” of cancer. The filming was supposedly done during the time of an above ground nuclear test. The prevailing winds over the test site were in the direction of where the movie was being filmed.
The funniest thing I remember about the movie was Susan Hayward as a red headed I guess Irish Mongol and the Mongol Horde being obviously Mexican.
My aunt was living in Reno during that period. She said after a nuclear test, people would report feeling sick or poorly. Probably low grade radiation sickness.
Well, at least a lot of Mexicans have an Asian heritage, and the Khan had his choice of many exotic captives.