THX-1138

THX 1138
Theatrical release poster
Directed by	George Lucas
Produced by	Lawrence Sturhahn
Screenplay by	George Lucas Walter Murch
Story by	George Lucas
Starring	Robert Duvall Donald Pleasence Don Pedro Colley Maggie McOmie Ian Wolfe
Music by	Lalo Schifrin
Cinematography	David Myers Albert Kihn
Edited by	George Lucas
Production company	American Zoetrope
Distributed by	Warner Bros.
Release date	March 11, 1971 (1971-03-11)
Running time	95 minutes(1971 studio cut) 88 minutes (2004 director's cut)
Country	United States
Language	English
Budget	$777,777
Box office	$2.4 million

THX 1138 (pronounced "T-H-X Eleven Thirty-Eight") is a 1971 American social science fiction film directed by George Lucas in his feature film directorial debut. Produced by Francis Ford Coppola and written by Lucas and Walter Murch, it stars Donald Pleasence and Robert Duvall, and depicts a dystopian future in which the populace is controlled through android police officers and mandatory use of drugs that suppress emotion, including outlawed sexual desire.

THX 1138 was developed from Lucas's student film Electronic Labyrinth: THX 1138 4EB, which he made in 1967 while attending the University of Southern California's film school. The feature film was produced in a joint venture between Warner Bros. and Francis Ford Coppola's production company, American Zoetrope. A novelization by Ben Bova was published in 1971. The film received mixed reviews from critics and failed to find box office success on initial release; however, the film has subsequently received critical acclaim and gained a cult following, particularly in the aftermath of Lucas's success with Star Wars in 1977.