Movie

My Stepmother Is an Alien

“She's gorgeous, and she's never been kissed. Needless to say, she's from another planet.”

★ 5.8(587)19881h 48m

My Stepmother Is an Alien is available to rent or buy on Amazon Video, Apple TV Store, Google Play Movies, YouTube, Fandango At Home and Spectrum On Demand in United States. It isn't on a subscription streaming service there yet. Availability checked 12 June 2026.

Where to watch My Stepmother Is an Alien

🇺🇸 United States

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Good to know

Director: Richard Benjamin
Release date: 1988-12-09
Runtime: 1h 48m
Language: English
Box office: $13,854,000
Budget: $20,000,000
Status: Released
Country: United States of America
Studio: Weintraub Entertainment Group

My Stepmother Is an Alien — trailer

About My Stepmother Is an Alien

My Stepmother Is an Alien is a 1988 movie in the Comedy and Science Fiction genres, directed by Richard Benjamin, starring Dan Aykroyd, Kim Basinger and Jon Lovitz. It has a runtime of 1 hour 48 minutes. It holds an average rating of 5.8/10 from 587 viewers. Below you can see where to watch My Stepmother Is an Alien in United States — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

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.

Cast

Dan Aykroyd

Steven Mills

Kim Basinger

Celeste Martin

Jon Lovitz

Ron Mills

Alyson Hannigan

Jessie Mills

Joseph Maher

Lucas Budlong

Seth Green

Fred Glass

Ann Prentiss

The Voice of the Bag (voice)

Wesley Mann

Grady

Tony Jay

Council Chief

Peter Bromilow

Second in Command

Nina Henderson

Cashier

Harry Shearer

Carl Sagan (voice)

Themes & keywords

single parentstepmotheralienspoofscientistwidowerlevitationmessage

Frequently asked questions

Where can I watch My Stepmother Is an Alien in United States?+

In United States, My Stepmother Is an Alien is available to rent or buy on Amazon Video, Apple TV Store, Google Play Movies, YouTube, Fandango At Home and Spectrum On Demand. It isn't on a subscription streaming service there right now.

Is My Stepmother Is an Alien on Netflix?+

My Stepmother Is an Alien is not on Netflix in United States right now.

How long is My Stepmother Is an Alien?+

My Stepmother Is an Alien has a runtime of 1 hour 48 minutes (108 minutes).

Who stars in My Stepmother Is an Alien?+

My Stepmother Is an Alien stars Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan and Joseph Maher.

When did My Stepmother Is an Alien come out?+

My Stepmother Is an Alien is a 1988 movie directed by Richard Benjamin.

What genre is My Stepmother Is an Alien?+

My Stepmother Is an Alien is Comedy and Science Fiction film.

Who directed My Stepmother Is an Alien?+

My Stepmother Is an Alien was directed by Richard Benjamin.