http://www.creativereview.co.uk/cr-blog/2011/january/honda-jazz-this-unpredictable-life
I adore this magical animation by agency Wieden + Kennedy.
They've also considered how to interact with the user by creating an iPhone app where you can catch the characters as they come from the screen. Whilst I love the ad, I wasn't as impressed by the app, however I think it was an interesting way of involving the user in some 'play'.
They are also responsible for the genius that is the Cravendale, Cats with Thumbs advert:
