Xanadu (film) actual order in the film: The plot of the 1947 film "Down to Earth" was used as the basis for "Xanadu". In the film, Rita Hayworth played Terpsichore, opposite male lead Larry Parks, who played a producer of stage plays. The film was originally conceived as a relatively low-budget roller disco picture. As a number of prominent, A-list performers joined the production, it evolved into a much larger project, while retaining rollerskating as a recurring theme, especially in the final scenes of the club's opening night. Earlier versions of the story established that Sonny was the artist who created the
Project Xanadu the potential of computers to assist the arts. In 1972, Cal Daniels completed the first demonstration version of the Xanadu software on a computer Nelson had rented for the purpose, though Nelson soon ran out of money. In 1974, with the advent of computer networking, Nelson refined his thoughts about Xanadu into a centralised source of information, calling it a "docuverse". In the summer of 1979, Nelson led the latest group of his followers, Roger Gregory, Mark S. Miller and Stuart Greene, to Swarthmore, Pennsylvania. In a house rented by Greene, they hashed out their ideas for Xanadu; but at