ALTERED STATES (1980)
Science Fiction/Fantasy and Thriller
Manic psychologist William Hurt's experiments combine sensory deprivation and mind-bending drugs to unlock the inner self. His handiwork shuttles him back and forth on the human evolutionary spectrum -- from human to ape-man. Hurt and colleague Blair Brown regurgitate Paddy Chayefsky's script at hyperspeed (director Ken Russell hated the dialogue but was contractually bound not to change it).
William Hurt, Blair Brown, Bob Balaban, Charles Haid, Thaao Penghlis, Miguel Godreau, Dori Brenner, Peter Brandon, Drew Barrymore