Of all the luck in the world, Michael Keaton's birth name happens to be the same name of the actor who has appeared in such gems as Basic Instinct, Romancing the Stone and even the little Marvel hit, Ant-Man. And while Michael Keaton is technically Michael John Douglas and Michael Douglas is Michael Kirk Douglas, the actor's union wasn't having it. Especially since at the time there was a Mike Douglas who was popular during the Big Band era. With limited options, Michael Keaton said on The Late Show Starring Stephen Colbert that Michael Keaton is what he ended up with. He definitely could have chosen something worse.