When making the leap from 2D to 3D, some changes to Astro had to be made as they did not adapt well in 3D (such as Astro's large eyes and curly eyelashes). Astro's look was tweaked to be more Caucasian, though this was never intentional. Imagi had several discussions on how round and curvy Astro's body proportions should be and in the end they were made to be more lean.[citation needed]
In early development Astro's design was younger, resembling his iconic design. However, this was changed so Astro looked more human. Imagi Animation Studios later wanted to add a few years on Astro as to make him more grown up and thus easier to relate to, Tezuka Productions, however, wanted no changes. Eventually, a compromise was reached, and Astro was altered to look just slightly more adult. Also there were issues on Astro's rear end being too small, and that too was altered after talks with Imagi.[citation needed]
Since there were issues about a boy flying around in underwear on the big screen (as it might confuse audiences not familiar with the Astro Boy series or his classic costume) suggestions were made and it was decided to give Astro clothes. Also his speedo was slightly tweaked to resemble shorts.[10][11]
And this.
Astro Boy|鉄腕アトム [sigpic][/sigpic]
