John Wayne as Genghis Khan (The Conqueror)
In a 1956 movie, The Conqueror, John Wayne depicted legendary monarch and conqueror Genghis Khan. This film was so terrible that people were killed. The film was so dreadful that it spent millions tracing every duplicate of the movie to never again be viewed. It wasn’t only that, the film was made near the radioactive wasteland site; therefore, when production had concluded, the half cast and crew, including Wayne, perished from cancer.
Tony Curtis as Antoninus (Spartacus)
Although Tony Curtis was excellent in classics like Some Like it Hot and Sweet Smell of Success, he wasn’t exactly the perfect fit for Stanley Kubrick’s Spartacus. Curtis actually signed up for the film to end his relationship with Universal Studios, for whom he allegedly hated working. Time Magazine said Curtis’ New York accident “suggests that the ancient Tiber was a tributary of the Bronx River.”