This scared the crap out of me when I first heard it. I hazard to guess this scene leads on from what we see in trailer, when everything goes to hell on the alien ship.
Synopsis:
Ridley Scott, director of “Alien” and “Blade Runner,” returns to the genre he helped define. With PROMETHEUS, he creates a ground-breaking mythology, in which a team of explorers discover a clue to the origins of mankind on Earth, leading them on a thrilling journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.
Released: June 1st 2012