My Stepmother Is an Alien backdrop
My Stepmother Is an Alien poster
#6,769 All-time worldwide
#73 1988 releases

Movie profile

My Stepmother Is an Alien

1988 · 108 min · Weintraub Entertainment Group

Box office snapshot

Financial performance

Reference figures based on available reported data.
Worldwide gross $13.9M
Budget $20.0M
Gross minus budget -$6.1M
ROI 0.69x

Domestic gross

$5.5M

Estimated from worldwide gross

International gross

$8.3M

Estimated from worldwide gross

Opening weekend

$1.6M

Estimated from worldwide gross

Ranking context

Where My Stepmother Is an Alien ranks

Positioned across the all-time chart, release year, studio, franchise and genre indexes where enough mapped data exists.
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Quick answer

How did My Stepmother Is an Alien (1988) perform at the box office?

High confidence

My Stepmother Is an Alien (1988) earned a reported $13.9M worldwide against a reported $20.0M production budget. Its gross-minus-budget figure is about -$6.1M. The current gross-to-budget multiple is 0.69x. In this database it currently ranks #6,769 in the current all-time worldwide chart set and #73 among 1988 releases.

Worldwide gross
$13,854,000
Budget
$20,000,000
Gross minus budget
-$6,146,000
ROI
0.69x
Source: TMDb. Last updated: Jul 13, 2026. View source Gross-minus-budget is not studio net profit. It excludes marketing, distribution fees, revenue splits, tax incentives and later home/streaming revenue.

Synopsis

Story

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.

Movie facts

Production details

Release date
Dec 9, 1988
Production
Weintraub Entertainment Group, The Catalina Production Group
Countries
US

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AI summary

Why this movie matters

Released in 1988, My Stepmother Is an Alien is positioned in this dataset as a Comedy, Science Fiction title from Weintraub Entertainment Group. Its box office profile shows that available worldwide gross is $13.9M, reported production budget is $20.0M, gross-minus-budget is -$6.1M, ROI is 0.69x. For comparison, it currently sits #6,769 all-time in the current chart set and #73 among 1988 releases. Streaming availability should be checked against the selected United States region because provider rights can change.

AI-generated contextual summary based on available movie, genre, ranking and box office data. It does not replace official distributor notes or financial reporting.
Data noteGross minus budget is not studio net profit. It excludes marketing, distribution fees, revenue splits, tax incentives and downstream revenue. Domestic, international and opening weekend figures marked as estimated are modelled estimates.