The document analyzes the use of sound in the animated film Toy Story 3. It discusses how the diegetic and non-diegetic sounds help establish characters and create tension. For example, when Mr. Potato Head is introduced as the villain, the music uses a low, dramatic tone. However, when the hero Woody enters, the music shifts to a lighter, more mellow tone. The document also notes various diegetic sounds that add realism, such as the jingle of money or footsteps. These sounds help characterize the roles of each character. Finally, the document discusses how elements of mise-en-scene - such as Woody's cowboy costume and the villains' disguises - further signal their roles