I stumble upon this on youtube and gave it a watch, an anime movie from the 1970s is really charming The story is simliar to the book, Thumbelina no bigger then a thumb made friends with the animals during her adventure. Character designs is made by the late talented Osamu Tezuka. Famous for Kimba the White Lion and the very well known Astro Boy (Mighty Atom) and the backgrounds are just so very beautiful, they feel magical. I can't say anything bad about it, its just a charming anime movie from the 70s If you love fairy tales give this a watch.