I might probaly go to see this, if not just to see how they try to sel it as a prequel to Aliens but not directly connected as i felt Aliens never really explained how it all started.
"Conceived as a prequel to Scott's 1979 science fiction horror film Alien, rewrites of Spaihts's script by Lindelof developed a separate story that precedes the events of Alien, but which is not directly connected to the films in the Alien franchise. According to Scott, though the film shares "strands of Alien's DNA, so to speak", and takes place in the same universe, Prometheus will explore its own mythology and ideas."