Stravinsky on The Rite of Spring #1

In an interview from the early 60’s, I believe by Janos Darvas, Igor Stravinsky humorously recalls playing The Rite of Spring for Sergei Diaghilev whose company, The Ballet Russes, would be dancing to this groundbreaking, albeit bizarre, score. One doesn’t imagine Stravinsky to be humorous but this isn’t the only light clip I’ve seen. All these clips from the same interview are thrown all over the internet with no source or sequence. I have no rights to any of it but this is important.