This is a detailed analysis of 103 Japanese science fiction, horror and fantasy feature films released theatrically or directly to television in the United States from 1950 through 1992. Each entry provides a plot synopsis, critique, background on the production, contemporary review quotes, and a comparison between the U.S. and Japanese versions. The filmography is arranged by studio and includes American and Japanese titles, release dates and releasing studios; comprehensive production and cast credits; running time; U.S. rating (when appropriate); and alternate titles.