My youngest son loves this book and movie!! He thinks the red haired boy is him - since he has red hair too!! I love the song "Walking In The Air" and play it over and over each Christmas.
As stated on Wikipedia.
The Snowman is a children's book by English author Raymond Briggs, published in 1978. In 1982, this book was turned into a 26-minute animated movie by Dianne Jackson The film was nominated for an Oscar for Best Animated Short in 1983. The cartoon version was scored by Howard Blake who wrote both music and lyrics of the song "Walking in the Air" and also composed and conducted the complete orchestral score for the film with his own orchestra, The Sinfonia of London. The book and film have no words, instead telling the story through picture, action and music. This adds to their charm, as well as making them easy to publish in other languages. The film's one song, "Walking in the Air," was written specially for it and performed by a St Paul's Cathedral choirboy, Peter Auty.