This collection celebrates the solo work of UB Iwerks, who was Walt Disney's foremost animator/collaborator in the formative early years. Some of the shorts haven't been seen since their initial theatrical release in the early '30s; others are old friends. More than 25 cartoons in all, including Iwerks' Mickey Mouse-follow-up Flip the Frog in "Nurse Maid" and "The Circus."