The autobiography of Cass Pennant, one of the infamous leaders of West Ham United’s Inter City Firm in the early 80s, was turned into a movie in 2007.

The story charts his numerous run-ins with opposing football gangs, how they meticulously planned the violence, and how a black man was accepted by his fellow West Ham ‘supporters’ – and abused by the firms that dared cross his path.

The book’s tone, proud and remorseless, is toned down for a far more balanced portrayal of hooliganism, and the misery it causes.