Top 5 in Top 10 Most Complex Science Fiction Movies Ever Made.
Trailer for the science fiction movie Altered States
Ken Russell's complex, macabre science fiction work, Altered States was inspired by John C. Lilly's study of sensory depletion — he conducted by administering neurostimulants in a quarantine tank. It stars William Hurt as a psychologist and physiologist who performs similar experiments.
Spread over the duration of Altered States, he begins to experience haunting hallucinations that he believes may be genetic memories. Russell's psychedelic imagery makes Altered States an experience unlike any other.