Origin: Spirits of the Past, known in Japan as Silver-Haired Agito , is a 2006 Japanese animated science fiction film directed by Keiichi Sugiyama, written by Nana Shiina and Naoko Kakimoto, and was produced by Gonzo. The film stars the voices of Ryo Katsuji, Aoi Miyazaki, Yūko Kotegawa, Masaru Hamaguchi, Toshikazu Fukawa, Kenichi Endō and Ren Osugi. It premiered in Japan in January 2006, and premiered in the United States in September 2006 at the Fantastic Fest film festival in Austin, Texas.