French actor Vincent Cassel discusses his role as notorious French gangster Jacques Mesrine in the two-part biopic “Mesrine: Killer Instinct” and “Mesrine: Public Enemy No. 1.” The film gives an account of Mesrine’s criminal career. He committed numerous robberies, kidnappings, and murders, and managed to escape from prison three times. “Mesrine: Killer Instinct” opens Friday 27, and “Mesrine: Public Enemy No. 1” opens September 3 at teh AMC Empire 25 and the Angelika Film Center.