Although it's fun to look at the old sketches and pencil tests, the high point of the supplementary material is the discussion host Leonard Maltin conducts with Frank Thomas and Ollie Johnston, the last surviving members of the justly celebrated "Nine Old Men" of Disney animation. Thomas and Johnston were nearly 90 at the time of the interview, but their enthusiasm for their work, for Mickey, and for the man who made it all possible remains undimmed. (Unrated; suitable for all ages: cartoon violence) --Charles Solomon