: A specialized 4K/Blu-ray edition from The Criterion Collection includes high-definition restorations and scholarly essays on its "visionary" aesthetics. 2. Scientific Features of an Altered State (ASC)

In psychology and neuroscience, a "feature" refers to the specific subjective or biological markers that define an altered state: Classification schemes of altered states of consciousness

: The film is known for its Oscar-nominated score by John Corigliano and groundbreaking visual effects by Bran Ferren, which used "slit-scan" and in-camera techniques to depict psychedelic hallucinations.

: It marked the film debut of actor William Hurt as Dr. Edward Jessup, a scientist who uses sensory deprivation tanks and hallucinogenic drugs to explore "original" human consciousness.

Directed by Ken Russell and based on the novel by Paddy Chayefsky, this film is famous for several pioneering features:

: The opening title sequence by R/Greenberg Associates used a geometric sans-serif typeface that disorientingly "invades" the screen, eventually obscuring the character within the text.