The Pixar one is fantastic -- directed by Ubb Iwerks' granddaughter, I believe. The Walt one is pretty good, but a little too worshipful, IMO, if it's the one I'm thinking of.
FWIW, they're not CNBC shows -- I think CNBC just has the rights to run them again and again and again.
Did you read the Gabler book on Walt? Not to compare a book to a film, but I thought that one was one of the better, more complete, and more balanced looks at his life -- although it sorta speeds up at the end and doesn't go into enough detail on his final years.