In 2003 a new Astro Boy anime series was created to celebrate the birth date of Astro Boy. Under the original english name (instead of Tetsuwan Atom), it kept the same visual style as the original Astro Boy manga and anime, but was revisioned and modernized with more lush, high-quality, near-theatrical animation and visuals. It combined the playfulness of the early anime with the darker, more serious and dramatic Science Fiction themes of the manga and the 80's anime. The anime broadcasted in Japan (on the same date as Astro's birth in the manga, April 7, 2003) with lots of fanfare. Directed by Kazuya Konaka and written by Chiaki J. Konaka.
The show was eventually picked up by Sony Pictures Entertainment. However, Kids WB picked up the broadcasting rights. Fans balked at the Dub, as the orignal score was changed and was given horrible scheduling. It was bounced back and forth between Kids WB and Cartoon Network until it was eventually cancelled. The entire series is currently available on DVD in one single boxset. However the US set is not fully complete, with one episode in the set being omitted "Eternal Boy" and repaced with a clip show episode. This is because the episode features a character very much akin to Peter Pan, which if had been included, may have caused copyright issues with Disney.
A trailer from 2001 made for this series when it was in development presented several major differences from the final series. With different designs for characters such as Atlas. With the characters speaking in english (with voices completely different to the voices that would eventually end up in the US dub) and animation not found in the final series. Which presents an interesting view of what originally was planned for this series.