Voir Sadisflix. ROLLER GIRLS an insightful complex look at this reemerging complex sport that has already swept across every state in the USA and found around the world . Set inside the secular underground world of today's Women's Roller Derby filmmaker Bob Bryan probes the gritty reality behind over three (3) dozen Derby women of varying ages and sizes, who have chosen to adopt super-hero and in some cases anti-hero persona's and attitudes to play this exciting, hard hitting and incredibly difficult and fast paced action sport.