Man on Fire (2004)

Hard-drinking, burnt-out ex-CIA operative John Creasy (Denzel Washington) has given up on life--until his friend Rayburn (Academy Award winner Christopher Walken) gets him a job as a bodyguard to nine-year-old Pita Ramos (Dakota Fanning). Bit by bit, Creasy begins to reclaim his soul, but when Pita is kidnapped, Creasy unleashes a firestorm of apocalyptic vengeance against everyone responsible.