Up is a very emotional movie. I saw it today and teared up during the beginning montage, at the end and a few times in between! There are these sentimental scenes along with some sad, funny, suspenseful, and simply beautiful ones. The animation is exquisite and the music lyrical.
I thought it was going to be a more light-hearted "up" movie than it was. It took the whole movie to give me that uplifting feeling... but it was a powerful feeling when it did come! The main character, Carl, travels to South America to fulfill a lifelong dream that he and his wife had. He accidentally takes an over-eager Wilderness Scout who is trying to earn his final assist-the-elderly badge before becoming a Senior Wilderness Scout. This little boy is a cutie-pie, which Carl literally drags along at some points in the film. They meet a very interesting chocolate-loving bird down there and lots of dogs. Carl also runs into his childhood hero who has turned old, disillusioned and is now a villain.
It takes the adventurous and sometimes perilous trip for Carl to realize that his life before going to South America was already a pretty good adventure in and of itself. The cute little Wilderness Scout sums up my main take-away when he muses to Carl, "Sometimes, it's the boring stuff I remember the most."
(If you haven't seen the movie... the few details that I describe above is just the tip of the iceberg of this movie! There is so much more to it.)
BY the way, I think Up is more for adults than children.