 Takashi Miike (I) (qv) cut this movie to the strains of the 1971  progressive rock album "Satori" by the Flower Traveling Band, which  he learned of through costars Joe Yamanaka (qv) and  Yuya Uchida (qv), who were also the bands founding members. Miike  found the album to be way ahead of its time and was delighted at how  well and inconspicuously it cut into a movie made 30 years later.