The first Undisputed was an adequate if bog-standard boxing film in which heavyweight champ Ving Rhames was sent to prison after rape allegations in shades of Mike Tyson’s life story, only to enter a bitter grudge match with the prison champ’, Wesley Snipes. Although hardly striving for the Palme d’Or, the first film at least had mild delusions of grandeur. This loose, hair-brained sequel is a B-movie without pretension and all the better for it. The always engaging Michael Jai White picks up the Ving Rhames character with no attempt to connect the dots, quickly winding up in an English-speaking Russian jail after he is framed for drug possession. He has been set up to fight the prison bully: sadistic MMA enthusiast Scott Adkins, simultaneously mastering a Bond-villain inflection and a stunning repertoire of flying kicks. With box-ticking efficiency, White miraculously learns mixed martial arts from a paralysed inmate, highlights the disparities in the prison guard system and becomes a uniting force among the inmates. This is credited for being the first action film to showcase the sport of mixed martial arts and, although offering very little in the way of originality, does hinge on the strength of its leading actors, both of whom are on top form.