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My Stepmother Is an Alien

1988·Movie·PG-13·108 min·5.8(593)

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

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.

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Where to watch My Stepmother Is an Alien in United States

Click a service to open My Stepmother Is an Alien there. Availability last verified on June 23, 2026.

Where is My Stepmother Is an Alien streaming around the world?

CountryStreaming onRent / Buy
United StatesThe Roku Channel, Tubi TVAmazon Video, Apple TV Store, Google Play Movies
United KingdomApple TV Store, Rakuten TV, Amazon Video
CanadaApple TV Store, Google Play Movies, CosmoGo
GermanyApple TV Store, Amazon Video, Google Play Movies
FranceApple TV Store, Google Play Movies, YouTube
SpainApple TV Store, Rakuten TV, Amazon Video
JapanAmazon Video, Apple TV Store, FOD

About My Stepmother Is an Alien

My Stepmother Is an Alien is a 1988 English-language comedy and science fiction film directed by Richard Benjamin. The cast is led by Dan Aykroyd, Kim Basinger, Jon Lovitz. It has a runtime of 1h 48m. Viewers rate it 5.8/10 across 600 ratings. In United States, it is currently streaming on The Roku Channel, Tubi TV.

My Stepmother Is an Alien was produced by Weintraub Entertainment Group and The Catalina Production Group and made in United States of America. It was released on December 9, 1988, and carries a PG-13 certification. Made on a budget of about $20 million, it went on to gross $14 million worldwide.

Director
Richard Benjamin
Writers
Herschel Weingrod, Timothy Harris, Jonathan Reynolds
Release date
December 9, 1988
Original language
English
Age rating
PG-13
Status
Released
Country
United States of America
Budget
$20 million
Box office
$14 million
Production
Weintraub Entertainment Group, The Catalina Production Group
#single parent#stepmother#alien#spoof#scientist#widower#levitation#message

My Stepmother Is an Alien cast & crew

My Stepmother Is an Alien was directed by Richard Benjamin and written by Herschel Weingrod, Timothy Harris, and Jonathan Reynolds.

The cast features Dan Aykroyd as Steven Mills, Kim Basinger as Celeste Martin, Jon Lovitz as Ron Mills, Alyson Hannigan as Jessie Mills, Joseph Maher as Lucas Budlong, and Seth Green as Fred Glass.

Behind the camera, the score was composed by Alan Silvestri, cinematography is by Richard H. Kline, and it was produced by Art Levinson and Franklin R. Levy.

Is My Stepmother Is an Alien worth watching?

My Stepmother Is an Alien holds an audience score of 5.8/10 from 593 ratings, a more divisive comedy films.

At 1h 48m, it's a standard feature-length watch.

If you enjoy comedy and science fiction, My Stepmother Is an Alien is worth a place on your watchlist.

How and where to watch My Stepmother Is an Alien

In United States, you can stream My Stepmother Is an Alien on The Roku Channel and Tubi TV, or rent and buy it on Amazon Video, Apple TV Store, Google Play Movies, and YouTube. Click any service above to open it directly.

Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.

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Cast of My Stepmother Is an Alien

Dan Aykroyd

Dan Aykroyd

Steven Mills

Kim Basinger

Kim Basinger

Celeste Martin

Jon Lovitz

Jon Lovitz

Ron Mills

Alyson Hannigan

Alyson Hannigan

Jessie Mills

Joseph Maher

Joseph Maher

Lucas Budlong

Seth Green

Seth Green

Fred Glass

Ann Prentiss

Ann Prentiss

The Voice of the Bag (voice)

Wesley Mann

Wesley Mann

Grady

Tony Jay

Tony Jay

Council Chief

Peter Bromilow

Peter Bromilow

Second in Command

No photo

Nina Henderson

Cashier

Harry Shearer

Harry Shearer

Carl Sagan (voice)

My Stepmother Is an Alien — FAQs

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

My Stepmother Is an Alien is streaming on The Roku Channel, Tubi TV in United States.

Is My Stepmother Is an Alien on The Roku Channel?

Yes — My Stepmother Is an Alien is currently available on The Roku Channel in United States.

What language is My Stepmother Is an Alien in?

My Stepmother Is an Alien is originally in English. Subtitle and dub options vary by streaming service.

How long is My Stepmother Is an Alien?

My Stepmother Is an Alien runs 1 hours 48 minutes (108 minutes).

What is My Stepmother Is an Alien rated?

My Stepmother Is an Alien is rated PG-13. It holds a 5.8/10 audience score from 593 ratings.

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