If I could use only one word to describe this movie, it would be: spontaneous. The kids sing and dance as they should, trying to follow the adults, the expressions are almost always at the right place and time and the actors look like they were born in their roles. Everything works, almost everything fits. The voices are beautiful and half of the songs can really touch you. Sure, the movie loses a little of its tone after the middle, trying to add political thoughts to mix in a shallow way. But, as a giant puzzle, this movie imperfections and colors fit to make a beautiful drawing. You really should watch this. Best musical I've ever watched.