My Stepmother is an Alien

My Stepmother is an Alien (1988)

Man's closest encounter.

  • Genre: Comedy, Science Fiction
  • Release Date: 1988-12-09
  • User Rating: 5.5/10 from 268 ratings
  • Runtime: 1h 48min
  • Language: English
  • Production Company: Weintraub Entertainment Group
  • Production Country: United States of America
  • Director:
star 5.5/10
From 268 Ratings


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.

My Stepmother is an Alien Trailer

My Stepmother is an Alien Photos

  • Dan Aykroyd

    as Steven Mills
  • Kim Basinger

    as Celeste Martin
  • Jon Lovitz

    as Ron Mills
  • Alyson Hannigan

    as Jessie Mills
  • Seth Green

    as Fred Glass
  • Harry Shearer

    as Carl Sagan (voice)
  • Juliette Lewis

    as Lexie
  • Ann Prentiss

    as The Voice of the Bag (voice)
  • Tony Jay

    as Council Chief
  • Joseph Maher

    as Lucas Budlong
  • Wesley Mann

    as Grady
Sound Alan Silvestri Music
Camera Richard H. Kline Director of Photography
Production Jerry Weintraub Executive Producer
Production Laurence Mark Executive Producer
Writing Herschel Weingrod Writer
Writing Timothy Harris Writer
Directing Richard Benjamin Director
Editing Jacqueline Cambas Editor
Production Franklin R. Levy Producer
Production Art Levinson Executive Producer
Production Ronald Parker Producer
Writing Jonathan Reynolds Writer