The documentary consists of tape of Don's show (never been filmed before), interviews with Don's contemporaries, (Steve Lawrence, Bob Newhart, Debbie Reynolds, etc.), established comedians (Billy Crystal, Rosanna Barr, Robin Williams, Chris Rock, etc.) and young comedians (Jeff Atoll, … Don Rickles, Harry Dean Stanton, John Landis, Clint Eastwood, Robert De Niro, Richard Lewis, Victor Figueredo Added on Amazon Prime 2022-05-03. Youtube Trailer