This site lists an impressive - and massive - collection of avant-garde/Surrealist film & video, spoken word sound recordings, etc. (For example, 4 films and 42 sound recordings relating to Jean Cocteau).
Take the film section - material from everyone from Man Ray and Max Ernst to Jacques Derrida and Marshall McLuhan. Video of an interview with Philip K. Dick from the Sci-Fi Book Festival in Metz, France, 1977? William S. Burroughs Cut-up films? Erik Satie documentary? No problem!
The sound recordings section looks equally extensive.
Film & video archive: https://ubu.com/film/index.html
Sound recordings: https://www.ubu.com/sound/index.html
Main menu: https://www.ubu.com/
Very interesting Palladium , quite a lot to explore. Intrigued by the historical section as well. Thanks for the link!
Just noticed they have The Residents' film, Twenty Twisted Questions - "a 1992 Laserdisc by the American avant-garde group. It is a compilation of the band's history up to Freak Show, their then multimedia project..."
And also Eyes Scream - an"irreverent pseudo-documentary about the band The Residents blends comedy with live clips, music videos, interviews and documentary footage... Director: John Sanborn. With: Penn & Teller."
https://ubu.com/film/residents_twenty.html
https://ubu.com/film/residents_eyes.html