Gin'iro is a rehash of two popular anime elements: man vs. nature and boy finds mysterious girl. The plot follows predictably as well: the girl holds some secret that the military wants to use, albeit with malintent. Despite that, the movie is done quite well. Given its archetypal story, this film is most likely designed to retell the story for the newer generation, since the movies listed above are quite old by now.
Pleasingly, the animation and soundwork is done extremely well. The unfortunate point of Gin'iro is its lack of stand-out characters. The cast is mostly stock and forgettable, and they carry the fault of acting rashly for the sake of plot progression even though their actions would normally conflict with true human nature. To be sure, there is little in the way of character development or characterization in general. Characters are the only facet which drag Gin'iro down from its initial aesthetic appeal.
All in all Gin'iro is a good movie, although it is mostly a retelling of similar stories that have come before it.
