Gray (2018)

In a post-apocalyptic world where young boys fight to the death in adult-run child fight clubs; a twelve year old girl named Gray has to make a hard choice after her eccentric slave owner Twist decides to make her fight in an upcoming match. Inspired by an old comic book and armed with magic items given to her by a peculiar new friend, Gray finds courage through her imagination in an effort to free the pit-fighting boys from captivity and end Twist's reign once and for all.