波妞是这样诞生的：宫崎骏的思考过程

ポニョはこうして生まれた 〜 宮﨑駿の思考過程 〜

A behind-the-scenes documentary directed by Kaku Arakawa, documenting Hayao Miyazaki's creative process in creating the character of Ponyo during the production of Ponyo on the Cliff by the Sea.