I'm not gonna lie, when I watched this as a kid, I loved it, so I'll judge it on those merits; and with the exception of a criminally miscast Ralph Fiennes (who plays Harry Potter's Lord Voldemort) as parody villain Victor Quatermaine, there isen't alot to complain about. If you're 10 or under, go ahead and see it; if otherwise, be cautious.
The trilogy just gets better and better, and now I've seen not only Pixar's BEST film, but also quite possibly the best kids' films ever made. Only a douche would think this movie is shit. 1% of the critics and 9% of the audience don't know what a good movie is.