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My Stepmother is an Alien Poster

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Movie Facts

Status: Released

Runtime: 105

Budget: $20,000,000

Revenue: $13,854,000

Language: en

Webpage: -

Release Info

  •  PG-13

  • 1989-03-09

Plot Keywords

Alternative Titles

  • J'ai épousé une extra-terrestre
  • Ho sposato un'aliena
  • La meva noia és una extraterrestre
Content Score: 93

5.6/10 (34 votes)


An alien is sent on a secret mission to Earth, where she appears as a gorgeous, attractive, and single lady. Her mission is to make contact with a rather nerdy young scientist, who's quite overwhelmed by her attentions, and isn't aware of the connection between her arrival and his work.


Man's closest encounter


Director: Richard Benjamin

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Dan Aykroyd

Dan Aykroyd
as Steven Mills

Kim Basinger

Kim Basinger
as Celeste Martin

Jon Lovitz

Jon Lovitz
as Ron Mills

Alyson Hannigan

Alyson Hannigan
as Jessie Mills

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