The following video is a look into the history of computer animation from the perspective of Ed Catmull, Alvy Ray Smith, Andrew Stanton and Brad Bird.
If you're as big as a Pixar fan as me, you'll have already heard some of the stories. Some of these stories are told in The Pixar Story documentary from 3-disc WALL-E DVD (Amazon link) and the book To Infinity And Beyond.
You have to watch this video if you're a Pixar fan or into animation.
And if you like this video, check out the SplineCasts (you'll need iTunes) from Spline Doctors.