 An anime film adaptation produced by Kadokawa Pictures premiered in October 2009 at the Sitges Film Festival and was released in theaters in Japan on May 1, 2010 in Japan and was released on DVD and Blu-ray Disc in Japan on October 27, 2010 and worldwide in November 2010.The film was directed by Kazuyoshi Katayama from a script written by Katayama and Hiroshi Yamaguchi, with characters designed by Hidenori Matsubara and monsters designed by Kenji Andou.The film retains the same characters from the manga, but it takes major liberties when it comes to the plot and storyline.