Crispin Glover, Bob Gale, and the controversial case of George McFly in 'Back to the Future Part II'

Crispin Glover had a career-changing role when he played Marty McFly's dad, George McFly, in "Back to the Future."

But when the sequel came around, negotiations fell apart and he was not included in the filming. Although audiences in theaters might think otherwise. The filmmakers used heavy prosthetics and makeup on actor Jeffrey Weissman who played George McFly in just a few scenes.

Glover was incensed at this use of his likeness and sued Universal Pictures. In the years since, he has consistently blamed co-writer and producer Bob Gale for the replacement, calling him a "thief" in an interview with Yahoo Entertainment. However, Gale denies any wrongdoing, saying he went through entirely legal means.