lusk was hired by the walt disney company in 1933 as an inbetweener. he was 20 at the time. his first film as an animator was 1938's "ferdinand the bull" adapted from 1936's the story of ferdinand by author munro leaf. he worked on "pinocchio", "fantasia", "bambi", "song of the south", "melody time", "so dear to my heart", "the adventures of ichabod and mr. toad", "cinderella", "alice in wonderland", "peter pan", "lady and the tramp", "sleeping beauty" and "one hundred and one dalmatians".