Thumbelina (1978)
Original title: 世界名作童話 おやゆび姫
Thumbelina is a 1978 Japanese-language animation movie directed by Yugo Serikawa, with a running time of 1h 3m. It stars Kazuko Sugiyama, Mariko Miyagi and Kyôko Kishida.
A tiny girl, only as long as a man's thumb, is born to a childless woman, abducted by frogs who want her to marry their son, but escaping instead (with the help of a bumblebee) to find a real prince without having to kiss the frog first.
Official site
http://lineup.toei-anim.co.jp/ja/movie/movie_sekaimeisaku_oyayubi/