Nagisa Ōshima was a Japanese film director and screenwriter. One of the foremost directors within the Japanese New Wave, his films include In the Realm of the Senses (1976), a sexually explicit film set in 1930s Japan, and Merry Christmas, Mr. Lawrence (1983), about World War II prisoners of war held by the Japanese.

In the Realm of the Senses is a 1976 erotic art film written and directed by Nagisa Ōshima. It is a fictionalised and sexually explicit treatment of a 1936 murder committed by Sada Abe. An international coproduction of France and Japan, the film generated great controversy at the time of its release. The film had the involvement of pink film luminary Kōji Wakamatsu as co-screenwriter and assistant producer. While intended for mainstream wide release, the film contains scenes of unsimulated sexual activity between the actors.