From flipbooks to feature films, animation has taken audiences to fantastical new worlds, far beyond the limits of any real-world setting. When graduate student Ed Catmull digitized and animated a plaster cast of his hand, it signaled the beginning of an entire new medium of cinematic expression: computer generated animation. Pixar Animation Studios, led by Catmull and creative master John Lasseter, has been at the forefront of this evolution, blurring the line between art and technology and bringing characters to life with more realism, heart, and beauty than ever before. As we celebrate the 20th anniversary of the first computer generated feature film, 1995’s "Toy Story,” Pixar takes a look back – from that first animated hand, to candy commercials and feature films, and the paradigm shift that occurred along the way. Join Pixar executives and filmmakers as they take a look back at computer animation, what challenges they have overcome and what they still hope to conquer.