Robert Duvall was one of the most beloved and celebrated actors of all time.He appeared in some of the greatest movies ever made including ‘To Kill a Mockingbird’, ‘M*A*S*H’, ‘The Godfather’, ‘The Godfather Part II’, ‘Network’, and ‘Apocalypse Now’, and gave groundbreaking performances in films like ‘The Great Santini’, ‘The Apostle’, ‘A Civil Action’, and ‘Tender Mercies’, which earned him an Academy Award for Best Actor.