: Yukio Tanaka nicknamed 'Koyuki' is an ordinary 16-year old drifting through life without purpose. Until he saves the strange odd-looking dog, who belongs to a local rock musician and talented guitarist Ryusuke Minami. Drawn into Japan's underground music scene, Koyuki finds that passion he's been missing. Ryusuke influences Koyuki to start playing guitar and eventually, along with rapper Chiba, genius bassist Taira and skillful drummer Saku the two form a band named BECK. And the first step in the their rise to stardom is performing on Japan's greatest rock festival Greatful Sound.
- The movie is based on popular music manga by Harold Sakuishi with the same name, published by Kodansha in Monthly Shōnen Magazine from 2000 to 2008. It has sold out more than 15 million copies of the 34 volumes since the first publication. The original manga was also adapted as an 26-episode anime television series, which was aired on Japan's TV Tokyo from 2004 to 2005.