やなせたかし
is a 1978 Japanese anime adventure-drama feature film adaption of the storybook of the same name written by Takashi Yanase, the creator of "Anpanman". It is most notable by fans and critics as a family film which makes a sharp sudden turn into a dark and violent story that criticizes and reflects upon the theme of revenge and war. It is also recognized as one of the only Japanese shock films directed towards children and families.