Up is an amazing film. It's funny, endearing, classic, and artistically excellent. The film breaks out of the mold of 3D animated film art direction with stylized characters and it prefers graphic shapes over the hyper-realism so common in the genre (you'll have to trust me).

While the characters are not toys, cars, or fish (which are easily merchandised) they are still cute. It will probably sell (at box office and toy shelves) at the same level as Ratatouille, but that is still a major success for any other studio on the planet.

Pixar used to be lauded for its originality and commitment to high quality. Suddenly, it's being panned for those same things.