Early 1976 draft screenplay of Alien by Dan O\'Bannon and Ronald Shusett titled Starbeast.

Final revised draft of the Alien screenplay from June, 1978 by Dan O\'Bannon, Ronald Shusett, Walter Hill, David Giler.

Early movie treatment titled Alien II written in September of 1983 by David Giler, Walter Hill, and James Cameron.

First draft of the Aliens screenplay from May of 1985 by James Cameron.

Complete final draft script by Elak Swindell, with Cameron\'s original final as the foundation. Created by watching the uncut version of the movie to make the script read scene by scene, word for word, as in the film.

First draft of an Alien 3 screenplay in October, 1989 by David Twohy.

Alien 3 screenplay written in March, 1990 by Vincent Ward and John Fasano.

Revised first draft of an Alien 3 screenplay rewrite in January, 1991 by Rex Pickett.

Revised first draft of an Alien 3 screenplay by William Gibson.

Alien 3 screenplay rewrite commissioned to Eric Red and ultimately never used.