Bolt, a Swiss White Shepherd, has lived his whole life on the set of his action TV show, where he believes he has superpowers. When separated from the studio by accident, he meets a female alley cat named Mittens and a hamster named Rhino. He's trying to find the way home, to the studio. Along the way, he learns that he doesn't have superpowers and that the show is not real. [imdb]
I would encourage anyone to watch the movie through, merely paying strict attention to all the artwork, backgrounds, animation, etc... at least just once. Despite being computer-generated, the layouts and backgrounds all look and feel hand-painted, sometimes like watercolours. Yet still, they were able to give certain textures a very realistic feel, and both the depth of focus and lighting are true to how our vision really works.
Obviously, I found the "Look of Bolt" featurette the most intriguing. It really gives a better appreciation for the art and animation in Bolt. Absolutely stunning.
Of course, everything else about the movie is just fun and wonderful. I really can't say much of anything against this film. Sure, it has Miley Cyrus and John Travolta, but even that can't ruin it.