In this film excerpt, Robert F. Kennedy Jr. recalls his father's admiration for Plimpton. "My father admired George for his courage, he had a curiosity about life and I think that’s the thing that probably attracted my father the most to him," says Kennedy, Jr. "Like my father, he saw life as a great adventure." Plimpton! Starring George Plimpton as Himself airs May 16, 2014 at 9 pm on PBS.