The best-known myths of Hollywood?

the best known myths and exaggerations of Hollywood films

In the film The Wizard of Oz, it is said that one of the Munchkis, committed suicide by hanging in a tree in a scene is hard to see something indicating that it is the dwarf.
In the exorcist, family deaths, the fire in the room of the protagonist, and pains.
Poltergeist, the older sister was murdered by her boyfriend in a cruel, the girl died from a rare disease at the end of the film 3, and several actors in this saga also died.
Rose Mary's baby, said it was the film that inspired Charles Manson to the murders in which was included Sharon Tate, wife of the director of the film.