Mark Ruffalo Breaks Down His Most Iconic Characters

Mark Ruffalo breaks down his most iconic characters, including his roles in 'The Avengers,' 'Spotlight,' 'Shutter Island,' '13 Going on 30,' 'Eternal Sunshine of the Spotless Mind,' 'Zodiac,' 'The Kids are Alright' and 'Dark Water.'

Dark Waters is in theaters and available on demand now!