THX 1138 is a 1971 science fiction film directed by George Lucas in his directorial debut. The film is based on a screenplay by Lucas and Walter Murch. It stars Robert Duvall and Donald Pleasence and depicts a dystopian future in which the populace is controlled through android police officers and mandatory use of drugs that suppress emotion, including sexual desire. THX 1138 was the first feature-length film directed by Lucas, developed from his 1967 student film Electronic Labyrinth: THX 1138 4EB, which he made in 1967 while attending the University of Southern California. This short film was itself based on a one and a quarter page treatment of an idea by Matthew Robbins. The feature film was produced in a joint venture between Warner Brothers and Francis Ford Coppola's new production company, American Zoetrope. A novelization by Ben Bova was published in 1971. In a city of the future, sexual intercourse is outlawed and use of mind-altering drugs is mandatory. Narcotics are...