With the success of Aliens, 20th Century Fox approached Brandywine Productions on further sequels. But Brandywine was less than enthused with an Alien 3 project, with producer David Giler later explaining he and partners Walter Hill and Gordon Carroll wanted to take new directions as "we wouldn't do a repeat of one and two". The trio opted to explore the duplicity of the Weyland-Yutani Corporation, and why they were so intent in using the Aliens as biological weapons. Various concepts were discussed, eventually settling on a two-part story, with the treatment for the third film featuring "the underhanded Weyland–Yutani Corporation facing off with a militarily aggressive culture of humans whose rigid socialist ideology has caused them to separate from Earth's society." Michael Biehn's Corporal Hicks would be promoted to protagonist in the third film, with Sigourney Weaver's character of Ellen Ripley reduced to a cameo appearance before returning in the fourth installment, "an epic battle with alien warriors mass-produced by the expatriated Earthlings." Weaver liked the Cold War metaphor, and agreed to a smaller role, particularly due to a dissatisfaction with Fox, who removed scenes from Aliens crucial to Ripley's backstory.
