Title: 3 Days to KillMPAA Rating: PG-13Director: McGStarring: Kevin Costner, Amber Heard, Hailee SteinfeldRuntime: 1 hr 53 mins What It Is?: Ethan Renner (Costner) is a dying man with a rare unusual type of brain cancer. The cancer has spread to his lungs. As such he has been forcibly retired by the government agency he…