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MOVIE DECISION GUIDE
Once Upon a Time in a Horror Movie
CAST & DIRECTOR
Directed by Ashley Cahill. With Mabel Thomas, Neeley Dayan, Shane Graham.
2.0/10
MOVIHERO RATINGWHAT IT'S ABOUT
In every horror movie, there's one killer story... Hoping for an unforgettable birthday, a group of friends sign up for an immersive horror-movie experience that promises to place them inside their own 1980s slasher film. But as the night unfolds, the lines between fiction and reality disappear, and what begins as a game of make-believe soon becomes a desperate fight for survival, where the only way to stay alive is to make it to the final reel.
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2.0/10
MOVIHERO RATINGYOUR WATCHLISTIn every horror movie, there's one killer story... Hoping for an unforgettable birthday, a group of friends sign up for an immersive horror-movie experience that prom…
MAKE THE CALL
Does this belong in your night?
A decision, not a review. Choose the kind of night you want and keep your queue honest.
RELEASE SNAPSHOT
Release snapshot for Once Upon a Time in a Horror Movie.
MoviHero lists October 9, 2026 as the release date for Once Upon a Time in a Horror Movie. Ashley Cahill is the listed director. The listed cast includes Mabel Thomas as Erika, Neeley Dayan as Katie, Shane Graham as Gordon, Alison Gold as Charlotte.
Release dateOctober 9, 2026
GenresDrama · Thriller · Horror
Runtime1h 23m
DirectorAshley Cahill
CastMabel Thomas as Erika, Neeley Dayan as Katie, Shane Graham as Gordon, Alison Gold as Charlotte
BEFORE YOU PRESS PLAY
Is Once Upon a Time in a Horror Movie right for tonight?
Pacing, attention and emotional impact are estimates from the current MoviHero Watch Profile, not verified scene-by-scene reviews.
How much time should I set aside?
Once Upon a Time in a Horror Movie runs 1h 23m. Allow extra time for breaks.
Is it slow or fast?
The current MoviHero pacing estimate is 6/10: a middle-ground pace.
Is it a good choice when I am tired?
The attention estimate is 6/10. Expect to follow the story rather than use it as background viewing.
How emotionally intense is it?
The emotional-impact estimate is 5/10, suggesting a moderate emotional load. This does not tell you whether the ending is happy or sad.
CHANGE ONE THING
Like this, but...
These share a listed genre with Once Upon a Time in a Horror Movie. Profile differences are estimates, not a guarantee of the same story or mood.
MOVIE RATING
MoviHero Rating
MoviHero Rating: 2.0/10 from 1 votes. Updated Nov 11, 2026.
Rating data supplied by TMDB, shown on a 10-point scale. MoviHero audience ratings are calculated separately from scores submitted here.
MOVIHERO AUDIENCE RATING
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CHECK AVAILABILITY
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OPTION 2
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WHAT WATCHING IT FEELS LIKE
Watch Profile
Seven estimates of the viewing experience, based on the stored Watch Profile. These are separate from the movie rating and are not verified scene-by-scene assessments.
Pacing6/10
Emotional Impact5/10
Mind-Bending5/10
Scary10/10
Violence5/10
Rewatchability5/10
Attention Required6/10
CAST & CREW
The people who make it land.
CHARACTERS IN THIS MOVIE
Follow the character.
Reviewed MoviHero character guides connected to this movie.
otherGordonGordon in Once Upon a Time in a Horror Movie (2026), played by Shane Graham.Open character guide otherKatieKatie in Once Upon a Time in a Horror Movie (2026), played by Neeley Dayan.Open character guide otherErikaErika in Once Upon a Time in a Horror Movie (2026), played by Mabel Thomas.Open character guide
SIMILAR GENRES & STORY THEMES
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MOVIHERO ESTIMATEKanibal
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MOVIHERO ESTIMATEMother's Love
2026·Drama · Thriller · Horror