If anyone else out there is a fan of Gantz the manga or anime or Gantz part one(movie) or is a fan of Arashi, Ninomiya or Mastuyama Kenichi i have just what u're looking for...almost.
http://www.tudou.com/programs/view/zv3vc2gqKwE/
The link above is for the raw with Korean subs for Gantz Perfect Answer which is part 2 of the Gantz movies. part 1 was released in January and part 2 in April. I've looked everywhere for streaming or download english sub links but no dice just yet. I will post it if and when I find it.
I've been looking forward to seeing this since i saw the anime and it was worth the wait. I don't speak Japanese but i got through the raw just fine. Hope u all enjoy.