My Stepmother is an Alien

My Stepmother is an Alien Trailers

Original title My Stepmother is an Alien
Category Comedy, Science Fiction
UK Release Date
Production year 1988
Production Country
Directors Richard Benjamin
Cast Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan, Seth Green, Harry Shearer, Juliette Lewis, Ann Prentiss, Tony Jay, Joseph Maher, Wesley Mann


Trying to rescue her home planet from destruction, a gorgeous extraterrestrial named Celeste arrives on Earth and begins her scientific research. She woos quirky scientist Dr. Steve Mills, a widower with a young daughter. Before long, Celeste finds herself in love with Steve and her new life on Earth, where she experiences true intimacy for the first time. But when she loses sight of her mission, she begins to question where she belongs.