Why are they treated so roughly and constantly humiliated? Why are they subject to unnecessary repressive rules? Why can’t they/he watch baseball on television?
Nurse Ratched is implacable, authoritarian and unshiftable in her white uniform. Her hairstyle, a masterpiece of severity.
It’s a classic 1960s/70s struggle between freedom and authority as well as an attack on the psychiatric regime of the time with electric shock therapy regarded by institutions as a useful treatment and by critics as the ultimate evil.
One of only three films that have won all five major Oscars – actor, actress, director, best screenplay, best picture – it is utterly compelling. Nicholson’s presence, whether he’s observing, talking, arguing or going wild is always riveting.
Source : http://www.express.co.uk/celebrity-news/781185/jack-nicholson-80th-birthday-one-flew-over-the-cuckoos-nest-film-rerelease