Despite the threat of sequel fatigue, Pixar has managed to create classics. 'Toy Story 4' is the latest example, a fascinating portrait of identity that doubles as a treatise on trash. Rob Harvilla joins Sean Fennessey to talk about the new film, what it means to kids and parents, and how the studio has persisted for 25 years (1:36). Then, they share their top five Pixar movies (28:43).