Films about jazz musicians tend to fall into two categories: ones that focus on personal drama at the expense of the music and ones that don’t get made. That’s why Yuzuru Tachikawa’s anime “Blue Giant,” released earlier this year, was such an anomaly. Though its story — based on a manga series by Shinichi Ishizuka — was laughably simplistic, it got deeper into the music than most films, documentaries included, ever manage.
