Si, hay un cantante de ópera china de por medio, pero no es la trama principal. La historia, por lo que he podido leer, trata de un padre y un hijo japonenes que están distanciados. Cuando el hijo, que es director de cine sufre un cáncer terminal, el padre decide ir a China a terminar el documental que estaba rodando el hijo sobre un cantante de ópera china... Por ahí van los tiros.

Tomado de IMDB.com

Takada, a Japanese fisherman has been estranged from his son for many years, but when the son is diagnosed with terminal cancer his daughter-in-law, Rie, summons him to the hospital. When his son refuses to see him, Rie gives him a videotape about the work his son was doing on a documentary film in a remote region of China's Yunnan province. Still troubled by the relationship, Takada decides to complete his son's work in part to develop an understanding of his son, and in part to do something for him. Once in China a series of obstacles and relationships bring him unexpectedly closer to both an understanding of himself and of his son. Written by docraven