An American ambassador learns to his horror that his son is actually the literal Antichrist Also Known As: Omen I (reissue title) Omen I: The Antichrist (reissue title) Omen I: The Birthmark (reissue title) The Antichrist (USA) (working title) The Birthmark (USA) (working title) Director: Richard Donner Writer: David Seltzer (written by)