Electronic Labyrinth: THX-1138 4EB (1967) by George Lucas

Electronic Labyrinth: THX-1138 4EB is a short film directed by George Lucas in 1967 while he attended the University of Southern California. The movie exists in 16mm reference print, on videocassette with a run time of 15 minutes, and on the special director's edition DVD of THX 1138,,an alternate version of Lucas' 1971 directorial debut which feature's newly added scenes. This short was used as the basis for Lucas' first feature film in 1971 titled, THX-1138 and starring Robert Duvall, Maggie McOmie, and Donald Pleasence.

References: http://en.wikipedia.org/wiki/Electronic_Labyrinth:_THX_1138_4EB and http://en.wikipedia.org/wiki/THX_1138

1:42:08 (known also as 1:42:08: A Man and His Car) (1966) by George Lucas

1:42:08 (known also as 1:42:08: A Man and His Car) was George Lucas's senior project at the University of Southern California in 1966. It stars racing lehend, Peter Brock and was named for the lap time of the Lotus 23 race car that was the subject of the film. It is a non-story, non-character, visual tone poem depicting the graphic beauty of a car going at full speed, and the only sound in it is the roar of the car's engine. Shot in color with a 14 man student crew, it was filmed at Willow Springs Raceway, north of Los Angeles, CA

reference: http://en.wikipedia.org/wiki/1:42:08

FREIHEIT (1966) by George Lucas

Freiheit (German for "freedom") is a 1966 short film by George Lucas. It follows a student's attempt to escape to freedom. This student (Randal Kleiser) tries to run across the Berlin border, but ends up being shot in the chest and side gut and is mortally wounded. While he dies, he thinks about dying for freedom. It was made while Lucas was a film student at the University of Southern California.

George Lucas is a writer-director that established him as a major figure in Hollywood consists of just three titles, made between 1971 and 1977 -- THX 1138, American Graffiti, Star Wars -- and there was a 22-year hiatus between Star Wars Episode IV and his only other feature-film directing credits, the three Star Wars prequels.

Randal Kleiser has directed several feature films, including Grease (1978), The Blue Lagoon (1980) with Brooke Shields, Summer Lovers (1982) with Daryl Hannah, Grandview, U.S.A. (1984) with Jamie Lee Curtis, Flight of the Navigator (1986), featuring the first use of digital morphing in a film, Big Top Pee-wee (1988), White Fang (1991) and Honey, I Blew Up the Kid (1992).

Refrences:
http://en.wikipedia.org/wiki/George_Lucas
http://en.wikipedia.org/wiki/Randal_Kleiser