(Video Link)
In his Republic, presents an allegory of the value of philosophy and the nature of knowledge that is popularly known as Plato's Cave: to the unenlightened mind, the world is filled with confusing ideas, like shadows on the wall of a cave, that only reflect truths not yet discerned. Michael Ramsey's stop-motion animated presentation of this story won first place at the USA Film Festival Short Film and Video Competition in 2008.
Link -via Nerdcore (which has a different animated short narrated by Orson Welles)