Michael J. Fox having his brain disorder from unknowingly eating human remains on a movie set that was near that pig farmer serial killer guy and his brother who used to host parties and kill sex workers.
Reminds me of the story about the 1956 film The Conqueror. It was shot in Utah, downwind of atmospheric nuclear testing. It was speculated that this caused cancers among the crew.
This sounds like Pickton. His farm is close to Vancouver which also is the set for a decent amount of movies, and supposedly some human flesh made it into circulation with pork products.