I loved this film. I liked all the other movies made by Pixar, but this have to be my favorite film of all of them that were released by that studio. Not only the animation and the story are incredibly good, but also the characters are very likable and all have unique, fantastic personalities. Carl Fredericksen must be not only the best character created by Pixar, but also one of the best movie characters ever made in the history of cinema.
"Up" is funny, exciting, both heartwarming and heartbreaking, and also has a message of optimism, that makes the film highly enjoyable, even in the saddest parts of the story. I never liked so much a film as this one. I can clearly see why most of the reviews were so good: "Up" it's a masterpiece that deserves everyone's appreciation. I loved everything about it: The music, the animation, the story, the characters… "Up" is easily the best movie of the 2009, and also one of the best animated films ever made.