Where to watch My Stepmother Is an Alien (1988) tonight
My Stepmother Is an Alien (1988) runs 1 h 48 min, is rated PG-13 in the US and averages 5.8 from 629 TMDB members. 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…
- Runtime
- 1 h 48 min — ends 9:48 pm if you start at 8:00 pm
- Rated
- PG-13 (US)
- Genres
- Comedy, Science Fiction
- Released
- December 9, 1988
- TMDB rating
- 5.8 / 10 from 629 votes
- Director
- Richard Benjamin
- Starring
- Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan
- Language
- English
Where to watch it tonight
Availability loads live for your country. See where My Stepmother Is an Alien streams (JustWatch via TMDB) →
Streaming availability by JustWatch. In the US, as of 2026-11-05: Howdy Amazon Channel (subscription), The Roku Channel (free with ads), YouTube Free (free with ads), Tubi TV (free with ads).
Questions people ask
- How long is My Stepmother Is an Alien?
- My Stepmother Is an Alien is 1 h 48 min long (108 minutes). If you start it at 8:00 pm it ends at 9:48 pm; add about 20 minutes if you watch trailers first.
- What is My Stepmother Is an Alien rated?
- My Stepmother Is an Alien is rated PG-13 in the US.
- Is My Stepmother Is an Alien a good movie to watch with a group?
- Yes — a crowd movie. Comedy and Science Fiction hold a room: people can talk, laugh or scream over it and still follow what is going on.
- Where can I stream My Stepmother Is an Alien?
- In the US, as of 2026-11-05: Howdy Amazon Channel (subscription), The Roku Channel (free with ads), YouTube Free (free with ads), Tubi TV (free with ads). Availability changes often; this page loads the live list for your country (streaming availability by JustWatch).
Lists it could be on
If you like My Stepmother Is an Alien
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- The Adventures of Buckaroo Banzai Across the 8th Dimension (1984)
- The Fourth Kind (2009)
- Knowing (2009)
My Stepmother Is an Alien on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.
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