This is a very nice anime movie. It is also known as "Wonderful Days" - Civilization has been destroyed by war and pollution, but the survivors have built the last city of Ecoban. As most natural resources have been exhausted, Ecoban is powered by pollution. The citizens of Ecoban need to continue creating this pollution leading them into conflict with the inhabitants of Marr while one man just wants to clear away the clouds and see the sky. This movie first came out in public in 2003 but the dvd came in Europe much later on (i think after 2005). The release delay on many countries maybe explains the reason why in Western countries such as the U.S. and Great Britain it was rleased under the title "Sky Blue" and in other countries under the title "Wonderful Days". Its a Koren production directed by Kim Moon-saeng. The movie includes really great quality sounds, music and computer graphics far greater than other anime movies of that time using highly detailed models for some of the backdrops into which the cel animated characters were animated. Some say that the computer graphics of this movie are comparable to those in the film Final Fantasy: The Spirits Within. The film was scheduled for release in the US on Blu-ray disc but yet uknown when.