Barefoot Gen
はだしのゲン (original)
A story about the effect of the atomic bombing of Hiroshima on a boy's life and the lives of the Japanese people.
Starring Issei Miyazaki, Masaki Kouda, Seiko Nakano, Takao Inoue, Yoshie Shimamura, Takeshi Aono, Katsuji Mori, Taeko Nakanishi, Tatsuya Jo, Junji Nishimura
Watch "Barefoot Gen" on Amazon released in 1983. It's a animation and drama movie, and has a rating of 8 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.