A Taiwanese-Hong Kong co-production originally released as Shi shin nu ni and alternatively known in English as 13 Nuns, Shogun Women, and Revenge of the 13.
The film is a Chinese production that takes place in China, but "shogun" is a term specific to Japanese culture.
The New York Times published this scathing review of the film's 3D effects on Jan. 25, 1982 when it was released in theaters: "It would not deserve mention except for the fact that it's in a 3-D process to be avoided unless one is out to risk eye strain. The film frame's two images, which are necessary to create the indepth effect, are printed so far apart that, most of the time, they remain out of focus even when one wears the plastic glasses handed out by the usher. Also, the lenses of the glasses are so dark, and the amount of light on the screen is so feeble, that every scene looks as if it had been photographed through the reinforced heel of a black sock. The title refers to an obscure order of Chinese nuns, young women who, once raped, are packed off to a convent where they're taught martial arts to protect themselves against future outrages."
The Blu-Ray release includes three short 3D films: College Capers, Persian Slave Market, and Two Guys From Tick Ridge.