Johnny Rotten had left the group shortly before filming started on the movie. He had had his fill of the band and Malcolm McLaren, and wanted no part in the film. Therefore, he only appears in archival clips of the Sex Pistols on stage. By the time the film had premiered, Rotten was already touring under his birth name John Lydon with his new band Public Image, Ltd.
To receive an 'X' certificate the BBFC required cuts to the final print. Full-frontal shots of 'Sue Catwoman' in Malcolm McLaren's bathroom were optically enhanced to remove images of her lower regions (banned under the Protection of Children Act) and a long shot of her was cut by adding black panties to cover up the offending area. The cinema scene was also cut by removing shots of Steve Jones's genitals during the sex scene with the Brazilian girl and Mary Millington's visible pubic area in her sex scene with Jones. A shot of Sid Vicious waving a flick-knife was moved back into the sequence to avoid equating sex with violence. The BBFC also demanded the inclusion of newspaper headline footage referring to the deaths of Sid Vicious and Nancy Spungen. All later releases feature this same print.
Sting appeared in a brief scene as the leader of a gay band The Blow Waves who attempt to kidnap Paul Cook but the footage was cut from the film. It later reappeared in the documentary The Filth and the Fury.
Contrary to popular belief the woman shot by Sid Vicious during his performance of "My Way" was not his mother Anne Beverley. She later stated in an interview that she was approached by Malcolm McLaren to play the role but turned him down, saying that "They used someone else in the end, an actress that didn't look like me at all, but because no one had seen me they all believed that it was me".