Alien2 - Visual Effects

Visual Effects

Brothers Robert and Dennis Skotak were hired to supervise the visual effects, having previously worked with Cameron on several Roger Corman movies. Two stages were used to construct the colony on LV-426, using miniature models that were on average six feet tall and three feet wide. Filming the miniatures was difficult because of the weather; the wind would blow over the props, although it proved helpful to give the effect of weather on the planet. Cameron used these miniatures and several effects to make scenes look larger than they really were, including rear projection, mirrors, beam splitters, camera splits and foreground miniatures.

The Alien suits were made more flexible and durable than the ones used in Alien, to expand on the creatures' movements and allow them to crawl and jump. Dancers, gymnasts and stunt men were hired to portray the Aliens. The translucent dome that gave the creature's head its sleek shape in Alien was eliminated because of its fragility at Cameron's insistence, exposing the ridged, spined cranium beneath. Cameron also felt that Giger's cranium design was more visually interesting without the dome.

Scenes involving the Alien queen were the most difficult to film, according to production staff. A life-sized mock-up was created by Stan Winston's company in the United States to see how it would operate. Once the testing was complete, the crew working on the queen flew to England and began work creating the final version. Standing at fourteen feet, it was operated using a mixture of puppeteers, control rods, hydraulics, cables, and a crane above to support it. Two puppeteers were inside the suit operating its arms, and sixteen were required to move it. All sequences involving the full size queen were filmed in-camera with no post-production manipulation. Additionally, a miniature alien queen was used for certain shots.