Pink film refers in Japan to movies produced by independent studios that includes nudity or deals with sexual content. This encompasses everything from dramas to action thrillers and exploitation film features. Many pink films would be analogous to erotic thrillers, e.g. Fatal Attraction, Fifty Shades of Grey, Basic Instinct, 9½ Weeks.

Shochiku Co., Ltd. is a Japanese entertainment company. It started its business in 1895 by managing kabuki theaters in Kyoto, and in 1914, it also acquired ownership of the Kabuki-za theater in Tokyo. In 1920, Shochiku entered the film production industry and established the Kamata Film Studio. Currently, it is considered one of Japan's Big Four film studios and is the oldest among the Big Four. Shochiku is a member of the Motion Picture Producers Association of Japan (MPPAJ).