There isn't a single weak link in the film. It's hilarious, touching and endlessly clever & inventive ("Mr Tortilla Head" specifically). The established voice cast is fantastic and all the newcomers manage to somehow not get lost in the massive number of characters. Michael Keaton as "Ken" and Timothy Dalton as the classically-trained actor and stuffed hedgehog "Mr. Pricklepants" are the two standouts of all the new faces.
The ending provides what I consider to be the most realistic movie representation of what it's truly like that second you realize you're not a kid anymore as you're leaving to go off to college. Just replace the toys with leaving your best friend since you were five or walking towards a plane after hugging your mom. It's that "wow, I'm on my own now" feeling and I've never seen it so perfectly dropped into a film before.
More than any movie I've ever seen, I badly want to take TOY STORY 3 back in time to six year old me and see how I respond to it. The movie is great but I just can't help wondering what a little kid relates to in Pixar movie anymore. With the money they still make and the toys they sell, there's something there but I don't see it. Most animated movies are made for kids with a few jokes to appease the parents but Pixar is the exact opposite at this point (and I definitely am not complaining). For animated family films, there is a remarkable lack of "dumbing" things down or throwing in characters and gags that kids will eat up. Obviously, the movie is about toys so it is accessible but there is almost nothing in the movie that a little kid would seem to truly understand. A five year old doesn't know what it's like to grow up or leave something behind. It really is incredible just how dark the movie gets. Lotso is a dick of epic proportions. So much so that Woody, the embodiment of all things honorable and virtuous, doesn't even give a shit what happens to him at the end. Are kids just smarter than I'm giving them credit for? Regardless, I love where Pixar continues to go with movie like TOY STORY 3 and am very happy to see animation studios like Dreamworks beginning to do the same.
Night and Day (animated short) - Not quite as great as PARTLY CLOUDY (the short before UP) but still pretty damn fantastic. The combining of traditional 2D, hand-drawn animation and the computer animation Pixar is known for provides a great contrast that really makes the short pop. It also has a nice little message for the kiddies. There's also a quick making of featurette.
Toy Story Trivia Dash - a silly, remote-based trivia game that I spent far too much time playing.
Two Commentary Tracks - The first is a visual commentary with Director Lee Unkrich and Producer Darla Anderson. They're a peppy duo and keep everything interesting, explaining all of the cool stories behind the film and some of their influences (like how Buzz becomes a Kubrick character after he's set to "demo" mode in the daycare). The visuals are a mix of storyboards, concept art and ADD-fueled distractions. The second is more technical and features the "behind-the-scenes" people. You get animators and other technical people explaining their impacts on the film and some of their stories behind it. They're a bit on the dry side but it's very informative and great to hear just what goes into making one of these movies. A lot of the info presented in these commentaries can also be found in some form in the other making of features.
Beginnings: Setting a Story in Motion - Michael Arndt explains the process of writing the screenplay.
Roundin' up a Western Opening - The evolution of the opening from a slow-burn Sergio Leone-type scene to the huge action scene it became.
Bonnie's Playtime: A Story Roundtable with Director Lee Unkrich - This further shows the painstaking process Pixar goes through to ensure every scene in the film is perfect.
There are a few more little featurettes showing some of the more technical aspects of making the film and some pieces on Pixar.