Kobito to Ao Mushi  

The Dwarf and the Green Catterpillar, The Gnome and the Caterpillar, 小人と青虫, The Dwarf and the Green Caterpillar, The Gnome and the Green Caterpillar, The Child and the Green Caterpillar

A musical movie about a tiny village with tiny people. A tiny child fed a starving caterpillar his last rice cake. There was a race held soon after to determine who the king will be. The caterpillar had become a butterfly and as a thank you, pulled the tiny childs race car.