On this day in movie history - Electronic Labyrinth: THX 1138 4EB (1967):

Electronic Labyrinth: THX 1138 4EB

directed by George Lucas,

written by George Lucas, Matthew Robbins,

released in the United States on August 23, 1967.

Cast: Dan Nachtsheim, Joy Carmichael, David Munson, Marvin Bennett, Ralph Stell.

Remade as THX 1138 (1970), directed by George Lucas.