Scum (1979)

This is the shocking story of life in a British Borstal for young offenders.

Scum was originally made as a BBC play, but after getting banned before ever being shown, Alan Clarke and Roy Minton got it re-made as a film. Ray Winstone plays Carling, a former thug who is trying to go straight, however the harsh life of institutionalized violence allows for no choices when it's survival of the fittest.

This is not an enjoyable watch, with graphic and miserable brutality in the form of various power struggles all over the prison. As well as being famed for the scene in which Carling reinstates his claim as "the daddy" this film is also notorious for its prolonged depiction of a traumatic gang rape, and there is no score throughout to take you away from the sounds of every cruel act. 

Unashamedly in your face, Scum is an anti-establishment explosion of a movie, like cumming in the queen's eye and then telling her to fuck off.