Idris Elba ("Luther," "The Wire"), Sean Harris ("Red Riding," "Creep") and Kate Dickie ("Red Road," "The Pillars of the Earth") have joined the cast of Ridley Scott's sci-fi epic "Prometheus" according to the director himself via The Daily Mail.
Scott also confirmed the previously announced casting of Noomi Rapace, Charlize Theron and Michael Fassbender and revealed that the actors, who've all signed secrecy clauses, were only allowed to read the script at Ridley's production office.
Asked about the plot, Scott says "It’s the story of creation, the gods and the man who stood against them. It’s not a small film." Shooting kicks off in three weeks across seven soundstages at Pinewood, including the giant 007 stage.
Scott also once again re-iterated that it's not an "Alien" prequel, despite a recent report via Bleeding Cool which says the film's setting "is, in part, a planet that has been terraformed to create the perfect environment in which a particular bioweapon would prosper."
The same report indicates that the creatures will be in the film, but not in the same form that we know. As the previous films have indicated, the xenomorphs take physical traits from their hosts - that's why the ones in the first two films they're bipedal in nature while the creature from the third film was more like its canine host. As the creature here has no human DNA, it won't be recognisable.