My Stepmother Is an Alien (1988): cast, story & where to watch

Released in 1988, My Stepmother Is an Alien is a comedy and science fiction film directed by Richard Benjamin, running about 108 minutes. “She's gorgeous, and she's never been kissed. Needless to say, she's from another planet.” — that tagline sets the tone.

What it’s about. 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.

Who’s in it. My Stepmother Is an Alien stars Dan Aykroyd as Steven Mills, Kim Basinger as Celeste Martin, Jon Lovitz as Ron Mills and Alyson Hannigan as Jessie Mills, among others.

How it landed. With an audience score of 5.7/10, My Stepmother Is an Alien has drawn a solid, mixed-to-positive response. It went on to earn $13.9M at the box office.

Where to watch. In US you can rent or buy it from Amazon Video, Apple TV Store, Google Play Movies and YouTube. See the full, country-by-country breakdown on our where to watch My Stepmother Is an Alien page.

If you liked it. Fans of My Stepmother Is an Alien tend to enjoy Forrest Gump, Parasite, Life Is Beautiful and Fight Club.