This is one of the rare cases wherein I, the parent, enjoyed the film more than my kiddos. To start, Pixar has done it again! These guys can't seem to hit a false note. To see my full review, go here.
I do think, however, that this is a more sophisticated storyline with some seriously scary moments, so I do recommend a parental (or older child) viewing before bringing the little ones in. But besides that, I loved the film and give it my highest DVD rating -- Stay Up.
Age Appropriateness (School Age):
Child Attention Span:
P.S. With the beauty of Pixar, I do think this film is worthy of a Blu-Ray purchase.