Avatar: Fire and Ash | Sigourney Weaver on Channeling Her ‘Inner Teenager’ (Exclusive)

Sigourney Weaver sits down with ET’s Denny Directo to debate her new movie, ‘Avatar: Fire and Ash,’ which hits theaters on Dec. 19. The performing icon reveals how she bought into the headspace of a teen to play the 14-year-old Kiri, and explains why engaged on set felt like an off-Broadway play regardless of the huge price range. Plus, she provides her recommendations on the way to maintain your breath underwater, as she did for almost 7 minutes on this film!