Some doors should never be opened.
Four brilliant university students are forced to confront themselves in terrifying ways when their Quantum Physics experiment leads to an entangled parallel existence that leaves them questioning who they are and what is real.
TMDB audience score
Based on 350 votes
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Availability in the US
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United States listings · Refreshed 12 Oct 2026. More horror to watch in the US
MyCinema quick facts
Worked out from the film's TMDB record and its United States provider listings. These are facts about the data, not a review.
Standard length · 1h 33m
At 1h 33m it sits between 90 minutes and two hours.
Science Fiction · Thriller · Drama
TMDB files it under science fiction, thriller, and drama.
2 subscriptions · 3 free · 2 to rent · 2 to buy
Included with 2 subscription services: Amazon Prime Video and Amazon Prime Video with Ads. Free or ad-supported on Hoopla, Fawesome, and The Roku Channel. Listed to rent from 2 stores. Listed to buy from 2 stores.
6.6 / 10 on TMDB
TMDB users rate it 6.6 out of 10 across 350 votes, a positive audience score. That is a moderate sample of voters.
The scare meter is MyCinema's own rating, given by a person who has watched the film. It is not a TMDB score.
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The 6th Day
2000, 2h 3m
A world of the very near future in which cattle, fish, and even the family pet can be cloned. But cloning humans is illegal - that is until family man Adam Gibson comes home from work one day to find a clone has replaced him. Taken from his family and plunged into a sinister world he doesn't understand, Gibson must not only save himself from the assassins who must destroy him to protect their secret, but uncover who and what is behind the horrible things happening to him.
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