Carlin was originally a Glaswegian, but was changed into a Cockney when Alan Clarke saw a then-unknown Ray Winstone walk in a unique way.
Ray Winstone did not hit Phil Daniels with the sock containing the billiard balls despite the scene being done in one take. A crew member laid on the floor and handed Winstone another sock containing ping pong balls. Nevertheless, Daniels claimed he was very sore when Ray whacked him with the sock.
The picture was labeled one of the most controversial "video nasties" during the UK Video Nasties controversy of the early 1980s.
The film has almost no music throughout except for the music played on Eckersley's radio during the scene when he frames Davis for 'stealing' it.