Fear what's inside.
A biologist signs up for a dangerous, secret expedition into a mysterious zone where the laws of nature don't apply.
TMDB audience score
Based on 9,702 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 55m
At 1h 55m it sits between 90 minutes and two hours.
Science Fiction · Horror
TMDB files it under science fiction and horror.
5 subscriptions · 8 to rent · 5 to buy
Included with 5 subscription services: fuboTV, MGM+ Amazon Channel, Philo, and 2 more. Listed to rent from 8 stores. Listed to buy from 5 stores.
6.5 / 10 on TMDB
TMDB users rate it 6.5 out of 10 across 9,702 votes, a positive audience score. That is a large 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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Horror and thrillers that TMDB recommends alongside this film.
Altered States
1980, 1h 43m
A research scientist explores the boundaries and frontiers of human consciousness. Using sensory deprivation and hallucinogenic mixtures from Native American shamans, he explores these altered states of cognizance and finds that memory, time, and reality itself are states of mind.
Open Altered States
