Too many great ones to pick from. Off top of my head, I'd probably go with Paths of Glory and Town Without Pity. One of my favorite roles though, I think was from a tv anthology. He played a WWI colonal or general as I recall, his kid was in the unit and he was concerned about his kid's cowardice. I think it was one of his actual sons played the role. I went to Australia, inspired by Man From Snowy River.