Movie guide
My Stepmother Is an Alien (1988): movie guide
My Stepmother Is an Alien (1988) is a Comedy, Science Fiction running about 108 minutes. It holds a TMDB score of 5.8/10 from 631 votes. Notable cast includes Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 1988-12-09
- Runtime: 108 min
- TMDB: 5.8/10
- Genres: Comedy, Science Fiction
Last updated: 2026-11-11 · First listed: 1988-12-09
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What is My Stepmother Is an Alien 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.
Cast highlights
My Stepmother Is an Alien features Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan, Joseph Maher, Seth Green. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 1988-12-09. Runtime: 108 minutes. TMDB score: 5.8/10 (631 votes). Genres: Comedy, Science Fiction. Original language: en. Status: Released.
Discover My Stepmother Is an Alien on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse My Stepmother Is an Alien, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is My Stepmother Is an Alien?
- My Stepmother Is an Alien is listed as Comedy, Science Fiction on TMDB.
- How long is My Stepmother Is an Alien?
- My Stepmother Is an Alien runs about 108 minutes.
- Who stars in My Stepmother Is an Alien?
- Cast highlights include Dan Aykroyd, Kim Basinger, Jon Lovitz, Alyson Hannigan, Joseph Maher, Seth Green.
- Does Cinema Box stream My Stepmother Is an Alien?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
