Arukimedesu no taisen

This is a fictionalized story is based on a manga and is not meant to be historically accurate. The first exciting 15 minutes of the movie made me think it was a war film. Instead it is a tale of a mathematician, who 9 years before the battle, tried heroically to prevent a money wasting battleship from being built for Japan's pre-WW2 navy instead of a carrier built on behalf of the forward thinking General Yamamoto.

The attack on the battleship at the beginning was well done and exciting. The main character ,played by Masaki Suda, gives an award-winning quality performance. The rest of the cast is good as well. Watching it in the original Japanese will better reflect their performances. There are some not so believable elements that you'll need to put aside in order to better enjoy the film. The final act has a poignant and surprising twist.