Oona Chaplin, Sam Worthington and Stephen Lang chat with ET’s Denny Directo about their movie, ‘Avatar: Fire and Ash,’ which hits theaters on Dec. 19. Series newcomer Oona explains how she got here up along with her character’s villainous strut and why James Cameron reminds her of her grandfather, the late nice Charlie Chaplin. Plus, Sam Worthington reveals how fatherhood influenced his method with Jake Sully.
