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How Alien: Resurrection led to the Ice Age movies

Louisa Mellor Jul 13, 2016

Blue Sky Studios’ CGI work on Alien: Resurrection began a long and fruitful relationship with 20th Century Fox…

When Blue Sky Studios was tasked with creating swimming CGI Xenomorphs for the fourth film in the Alien franchise, its animators looked to inspiration from the natural world. Aptly for Hr Giger’s demonic creations, said inspiration was found in a Galapagos Island creature nicknamed by Charles Darwin the “imp of darkness”.

“We patterned [the Xenomorphs’] movements on reference footage of sea iguanas” Blue Sky’s Digital Effects Supervisor for Alien: Resurrection Mitch Kopelman told American Cinematographer magazine in November 1997. “They have this crazy little swim where they tuck their legs under their bodies and use this really long tail to propel themselves.” After much work, the end result was the CGI swimming aliens that pursued Ellen Ripley and co. through the flooded kitchens of the Usm Auriga in the 1997 sequel.

See full article on Den of Geek