Michael Keaton, born Michael John Douglas, plans to start using the name Michael Keaton Douglas professionally. Due to Screen Actors Guild rules preventing duplicate names, he initially adopted 'Keaton' in the 1970s because 'Michael Douglas' was already taken by another actor. Keaton, who recently turned 73, intended to make the name change for his latest directorial project 'Knox Goes Away' but forgot to finalize it in time. He assures fans that future credits will reflect the new name. His role in the upcoming film 'Beetlejuice Beetlejuice' may be the last under his original stage name.