Beginning with the creation of the Mickey Mouse cartoons, the Walt Disney Studio established an early reputation as being a technical leader in Hollywood. But Walt Disney didn't do it alone. He frequently relied on the counsel, expertise, ingenuity, and creativity of a kindred spirit, lifelong friend, and fellow virtuoso: Ub Iwerks. Yet Ub and his many technical inventions and techniques are largely unknown by the general public. His illustrious career consisted of dozens of innovative contributions, large and small, to both animated and live-action motion pictures, as well as the fields of...