The film is based on the manga by Yoshitoki Oima that’s being released in North America by Kodansha Comics.
The release of the Japanese anime film A Silent Voice, also known as Koe no Katachi, from Kyoto Animation came out on September 17th, 2016 and looks to be doing pretty well so far.
Produced by Kyoto Animation, the film is directed by Naoka Yamada based on the script from Reiko Yoshida with Futoshi Nishiya handling the character designs.