from the CGS article:
*** SPOILERS AHEAD ***
Prometheus, the long awaited science-fiction from Ridley Scott, has emerged as a spine-chilling reveal to his earlier Alien masterpiece. In Prometheus, a team of explorers discover a clue to the origins of life on Earth. While this production is quoted out as a prequel to Alien, and it may well be that this production stands out as a beacon to visual effects artists as yet another level to aspire to. With story references to ‘where did we all come from’, far more than the original, the creation of yawning vistas, damned creepy aliens in full screen, and the most violent, ‘beautific and horrific’ scenes, make this particular piece of eye-candy well worth seeing on the big screen in 3D.
On set, Ridley Scott would constantly refer back to the original Alien film. The approaches the original crew took were very simple in a practical way, and he still shoots in that same way. The moment in that first film when the first face-hugger wraps itself around John Hurt’s face, was captured with very short cuts and bursts of shots. Captured in a way that makes the whole sequence seamless.
The CGSociety interviewed the VFX Supervisors of each major studio working on the movie, as well as the Overall VFX Supervisor Richard Stammers. The challenge was to visualise some of the most intense VFX seen on the screen. This immense job was taken by teams from MPC, Weta Digital, Fuel VFX, as well as fx3x, Prologue, Luma Pictures, Rising Sun Pictures, Hammerhead, Lola Pictures and others.