What an actor's actor. I'd forgotten how much stage work he did prior to getting into films; it shows, on a good way. And he made it look so simple. A true craftsman in a lonely art. And magnificently done. RIP.

From the NYT obit:

From early on, Mr. Duvall enjoyed the life of a supporting actor. "Somebody once said that the best life in the world is the life of a second leading man," Mr. Duvall told The Times. "You travel, you get a per diem, and you've probably got a better part anyway. And you don't have the weight of the entire movie on your shoulders."