The Rocky Horror Picture Show is a 1975 musical comedy film that parodies science fiction and horror films. With a screenplay written by Richard O'Brien and Jim Sharman, the film features Tim Curry, Susan Sarandon and Barry Bostwick. The film is based on the British musical stage production The Rocky Horror Show.The film is considered a cult classic and a midnight movie, although it is widely known by mainstream audiences and has a large international following. RHPS was the first movie from a major film studio20th Century Foxin the midnight-movie market. The movie is one of the most well known and financially successful midnight movies. It is the longest running theatrical release in film history. More than 30 years later it is still in limited release in cinemas around the world. In 2005, the film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".