Takashi Miike 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 and Yûya Uchida, who were also the band's 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.