This is the trailer for the upcoming Tetsujin 28 (translated “Iron Man 28″) cgi movie. It really looks quite good and was done by Imagi Studios, the people responsible for the latest cgi TMNT movie. For those not in the know, Tetsujin 28 is the original Japanese giant robot character, originating in manga from 1956. The story was later adapted as an anime cartoon and was exported to America as Gigantor.
For more info on Testsujin 28, check out the wiki entry here.
Also, check out Imagi’s official T28 website here.