Up (4 Disc Combo Pack with Digital Copy and DVD) [Blu-ray] (2009)

I think it's a great movie, and for children. I would recommend it for sure.

Sure, I think it's a good one to add to your collection.

(It's especially nice that it's an original story and not a transmogrification of a classic fairytale.)

I agree with the other folks comments.  As a former teacher who still likes many of the fairy tales, it's great to include more modern tales, if they're of quality and are age appropriate. My niece's birthday is real soon, so thanks to everyone's help, I think I'm going to order her a copy of the Blu-ray DVD version of UP tonight after dinner! 

Is it also enjoyable by adults??

yes do it