In July 2009 20th Century Fox announced that Jon Spaihts had been hired to write a prequel to Alien, with Scott attached to direct.[83] The script was subsequently re-worked by Scott and Damon Lindelof. Titled Prometheus, it went into production in May 2011, scheduled for theatrical release in June 2012. Scott released a statement: "While Alien was indeed the jumping-off point for this project, out of the creative process evolved a new, grand mythology and universe in which this original story takes place. The keen fan will recognize strands of Alien's DNA, so to speak, but the ideas tackled in this film are unique, large and provocative."[84]
http://en.wikipedia.org/wiki/Alien_(film)#Sequels