Prometheus is a loose prequel to the Alien franchise. A crew from Earth heads out into deep space looking for answers on how the human race was created. They arrive on a planet, and all hell breaks lose. The film can be very ambitious, but it's quite captivating visually, has great performances (particularly Michael Fassbender as the android David), and asks tough questions about the subject it tackles. Definitely worth checking out whether you are a fan of the Alien films, Ridley Scott films or science fiction in general.