This document discusses the evolution of animation techniques at Disney from 1937 to the present. It covers early films like Snow White and the Seven Dwarfs which pioneered techniques like Technicolor and the multiplane camera. Later films incorporated live action reference and rotoscoping. The 1960s saw the rise of xerography and recycled animation to cut costs. The 1990s brought computer animation with films like Beauty and the Beast. The document also examines themes of realism, multiculturalism, and the changing roles of women in Disney films over time.