Rare Footage of Bakshi working on Fritz the Cat

This 1970 German documentary on Robert Crumb contains rare footage of Ralph Bakshi in his studio during the making of Fritz the Cat. Young Ralph is shown in the studio, walking through New York and looking at one of his animators flip through drawings. The documentary was loaded onto YouTube in three parts (embeded below) and is NSFW (not safe for work, due to naked hippies). Bakshi first appears a little after 6:30 in part one:

(Thanks, Rogelio Toledo)