Altered States
“In the basement of a university medical school, Dr. Jessup floats naked in total darkness. The most terrifying experiment in the history of science is out of control... and the subject is himself.”
1980 · 1 h 42 min
Directed by 
Ken Russell
Ken RussellCast
Cast not recorded here
Plot
A scientist experiments with sensory deprivation and hallucinogens and regresses to primal forms, with dangerous results.
Sinekatalog’s take
Ken Russell's wild, psychedelic sci-fi horror is intense and full of visual excess, with a startling William Hurt debut.Sinekatalog’s own editorial review – not a user or critic quote.
Ratings
IMDb: 6.9 / 10 (43,258 votes)
IMDb rating and vote count from the IMDb ratings dataset (October 2026). Scores change over time.