W.R.: Mysteries of the Organism (Serbo-Croatian: W.R. – Misterije organizma / W.R. – Мистерије организма) is a 1971 film by Serbian director Dušan Makavejev that explores the relationship between communist politics and sexuality, as well as presenting the controversial life and work of Austrian-American psychoanalyst Wilhelm Reich (1897–1957). The film's narrative structure is unconventional, intermixing fictional and documentary elements.