Up
What a really good film!
It's U certificate and rated as OK for children over 4 but I'm not sure how much of it they will enjoy. It's not quite like Shrek, where the adults can laugh at the hidden 'adult' humour whilst the kids laugh at kiddie stuff. It has a fairly serious theme - a love story really. But lots of derring-do, great pixar animation and a humorous dog (but a pack of scarey ones)
The very shory film which accompanies it (about clouds and storks) is just fantastic - gets you in the mood