The film sees recidivist criminal McMurphy being moved from prison to a mental institution where he hopes to serve out his sentence in peace. However, he immediately locks horns with Nurse Ratched, a harsh disciplinarian memorably played by Louise Fletcher; RP’s attempts to undermine her authority are the source of the film’s irreverent humour, yet Forman’s larger concerns about oppression and the place of the individual in society are evident in the emotive last act which culminates in an iconic act of defiance.

One Flew Over the Cuckoo’s Nest Official Trailer;