 It is the only film adaptation of the fantasy series, animated or otherwise, although a live-action Hollywood production has also been announced.At a press conference that was held on 9 July 2011, Japanese film distributor Gaga Communication announced that the film would be released in Japan on 7 December 2011.The film is based on the Japanese version of the series illustrated by Ayana Amako, and the screenplay was adapted by screenwriter Ichiro Ookochi.