The big ape was the big challenge for John Letteri, visual effects supervisor on King Kong.
In Peter Jackson's new version of the story for Universal, Kong is "an animal we have to read as an animal", says Letteri, "but we also have to understand what he's thinking and feeling in his relationships to the other characters.
That's been the toughest challenge - to walk the line between making him look believable as an animal and conveying a character that can perform and that you can connect with."
To create the all-CG Kong, Letteri, who won Oscars for his effects work on the second and third instalments of Jackson's The Lord Of The Rings trilogy, drew on his experience with the trilogy's digital character, Gollum.
Letteri and his team at Jackson's Weta Digital in Wellington, New Zealand, began - as they did for the Rings character - by doing bodily motion-capture work with Andy Serkis, the actor who modelled for, and was the voice of, Gollum.
This time the team experimented with facial-motion capture, using Serkis' expressions as a basis for Kong's.
The motion-capture system, Letteri explains, was "taught to 'read' Andy's expressions. Then we created a corresponding set of expressions for Kong. The system would read anger or fear or even melancholy - any beat Andy was playing would be interpreted for Kong. We call it 'gorillification'".
Screen International
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