- Country: South Korea, USA
- Genres: Action, Adventure, Animation
- Release: 2003-07-17
- Director: Moon-saeng Kim
- Writers: Michael Keyes , Moon-saeng Kim , Jay Lender
- Language: Korean | English
- Stars: Andrew Ableson , Andrew Ableson , Andrew Ableson , Andrew Ableson , Cathy Cavadini , Cathy Cavadini , Cathy Cavadini , Cathy Cavadini , Cathy Cavadini , Cathy Cavadini , Joon-ho Chung , Joon-ho Chung , Mark Lindsay , Mark Lindsay , Mark Lindsay , Mark Lindsay , David Naughton , David Naughton , David Naughton , David Naughton
- Runtime: 86 min
- Awards: 1 win & 1 nomination
- AKA: Wandafuru deizu (Japan) , Wonderful Days (Philippines) , Wonderful days (Días maravillosos) (Spain) , Wonderful Days (Korea) , Wonderful Days (Canada) , Ihania päiviä (Finland) , Wonderful Days , Underbara dagar (Finland) , Predivni dani (Serbia) , Sky Blue (Poland) , Wonderful Days - Mundos Paralelos (Portugal, Portuguese Republic) , Wonderful Days (France, French Republic) , ワンダフルデイズ (Japan) , Céu Azul (Brazil) , Sky Blue (United States of America) , Wonderful Days , Wonderful Days (United Kingdom) , Wonderful days - Mundos Paralelos (Portugal, Portuguese Republic) , Wonderful days (Spain) , Sky Blue (India) , Фантастические дни (Russian Federation) , Wonderful Days (United States of America) , Wonderful Days (Germany)晴空战士 (China)
- Plot:
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.
- IMDB:tt0353014
Sky Blue Cast · · · ALL
Won-Je Tak
Senior Adjutant (voice)
Seong-min Kim
Woody (voice)
Ji-Tae Yoo
(voice)
Sunmin Park
Maya (voice)
Joon-ho Chung
Commander Locke - Dr. Noah