Movie·1988·108 min

My Stepmother Is an Alien

Name: My Stepmother Is an Alien
Genre: Comedy, Science Fiction
Released: 1988-12-09
Duration: 108 min
Rating: 5.8
Cast: Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan, Joseph Maher

My Stepmother Is an Alien streams in the US on Howdy Amazon Channel, and free with ads on The Roku Channel, YouTube Free and Tubi TV, as of October 5, 2026.

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

5.8 / 10 · TMDB

Comedy Science Fiction

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.

Where to watch

Tired of paying for every app?

9 apps, one package.

This title is not on an app included with Spectrum, but Spectrum Stream TV Signature includes HBO Max, the Disney+ and Hulu bundle, Peacock, Paramount+ and more. Spectrum Internet is required and sold separately.

See what’s included Calculate your savings

The streaming math

What if half your apps were already included?

See which ones Spectrum covers and what you’d actually save. No login. No email. Just math.

The concierge · Still listening

Streaming on