I really, really enjoyed this movie. It's been a while since I've seen one of the recent Disney computer-animated movies, but my students insisted I take in Up. This movie takes the viewer through a whirlwind of emotions - some parts are happy and funny, other sad, heartbreaking, and heartwarming. I especially loved the montage between Carl and his wife Ellie. I found there to be a lot of depth considering this is meant to be a kid's movie.
If you haven't seen Up, go! You won't be disappointed.
P.S. My favorite character was Russell the Wilderness Explorer, if you see it, you'll understand!