The animation style is more Hergé than Ghibli, even though the latter is the studio producing. Nevertheless, it's beautiful, and the story is sometimes gripping. The complete lack of dialogue poses a challenge to the animators, but moreso to the audience. Neither the story, nor the character development warrants a feature length film, though; as a short, The Red turtle would have been very strong, methinks.
Failed the Bechdel test
3 animagi of 6