This ad is mesmerizing. Tiji, a French children's channel, have released it as part of a campaign created for them by DDB Paris.
“Balloon” has for me achieved something that great movies can take 2 hours to do – it drew me into an alternate world and suspended my disbelief. In what is, I assume, their effort to advertise to parents as well, they've managed to appeal to a much larger audience (I watched it 3 times). Of course the production quality and the amazing music helped it achieve that goal.
The concept is simple but clear and rich enough to carry over different mediums – always a sign of a great campaign. To see what I mean have a look at the beautiful print advert below, which while having a different look and feel to the video definitely communicates the same idea: Tiji is as imaginative as children.