Warrendale is a 1967 documentary film by Canadian filmmaker Allan King. It was originally produced for broadcast on CBC Television, but was never shown due to King's refusal to edit out the copious profanity in the footage.
The film is a cinéma vérité look at the lives of emotionally disturbed children housed in a Toronto facility named Warrendale.
Warrendale won awards at the Cannes Film Festival, and French director Jean Renoir declared King a great artist.
In 2002, Warrendale was honoured as a "MasterWork" by the Audio-Visual Preservation Trust of Canada.