There are a number of interesting pieces of audio featuring William S. Burroughs over on archive.org and the lectures I checked out with him and Ginsberg are CC licensed Attribution-NoDerivs-NonCommercial. That search also turns up a couple interesting films and related information that are of interest. Also try searching the archive for Coronet Films if you like 50s films about decency, morality, and how to avoid teen pregnancy through liberal application of sweater-vests and hair combing.