"Cass" doesn't really add much to the soccer violence genre of film. In my opinion it is inferior to "Green Street", another movie about violent West Ham United supporters.It lacks the excitement and adrenalin of that film, although there were several tense and violent scenes."Cass" is more of a biopic than anything , featuring the early years of the infamous hooligan, his time in prison and the years after he ended his football thuggery, prior to the attempt on his life in the early 1990's.The film portrays him as a family man,a leader and an organiser as well as a dangerous,violent hooligan."Cass" is watchable,but probably nothing you haven't seen before.