Stumbled across this really interesting interview with Marcel Duchamp, who did record quite a number of interviews both on film and tape but not nearly as many as you would hope. Such a lively interviewee who was frequently asked to cover the same material, but usually he didn't respond in exactly the same way, often with a twist and some exertion of his considerable charm. I also highly recommend the book published last year of Calvin Tomkins' 1964 conversations with Duchamp entitled The Afternoon Interviews.
