He was hired by Walt Disney in 1933 to work on the animated short
"Mickey's Gala Premiere." He left the studio in 1949 to start his own
business, but returned 40 years later and worked on many Disney
animations
Walt [Disney] was a great advocate of pantomime. He would stand in front of the boards and re-enact the scene. You could see the reflection of him in the film: his pantomime was beautifully followed through. Today it's all talking heads.