Summit Entertainment today released the first teaser trailer for its upcoming "Astro Boy," an animated film based on Osamu Tezuka's comic series that follows the adventures of a young robot created by a scientist to replace his late son.

At 48 seconds with plenty of titles, this teaser doesn't really paint a good picture of what this thing will eventually look like. The only thing I can say for now is that the characters look like simple animated toys doing goofy stuff.

Freddie Highmore, Nicholas Cage, Donald Sutherland, Bill Nighy, Eugene Levy and Nathan Lane have all signed on to voice the characters. The film is set to open Oct. 23, 2009 (still via Cinematical).