In the 1930s, Walt Disney made character animation a particular focus of his animation studio, best showcased in productions such as "Three Little Pigs" (1933), "Snow White and the Seven Dwarfs" (1937), "Pinocchio" (1940), and "Dumbo" (1941). "Snow White and the Seven Dwarfs" was the "first full length animated and musical feature" in Technicolor. Disney animators such as Bill Tytla, Ub Iwerks, Grim Natwick, Fred Moore, Ward Kimball, Les Clark, John Sibley, Marc Davis, Wolfgang Reitherman, Hal King, Hamilton Luske, Norm Ferguson, Eric Larson, John Lounsbery, Milt Kahl, Joe Ranft, Frank Thomas and Ollie Johnston all became masters of the technique.