The Rocky Horror Picture Show is a musical/comedy parody of the Great British science fiction and horror films released in 1975. The movie, which was first shown in 1975, is one of the longest-running movies in movie theaters. The film gained notoriety among the masses as a midnight screening film. The Rocky Horror Picture Show is the first midnight screening film marketed by respected film studio 20th Century Fox. The Rocky Horror Picture Show, the internationally best-known late-night movie of all time, is also one of the highest-paid films of this genre. The film was added to the United States National Film Registry in 2005 because it was deemed "culturally, historically, or aesthetically significant."