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Originally posted by: Shimraa
only his head was CG thou, i thought they had an actual guy that played him.
He was rather Gollum-like in how he was created. He was acted out by a human, yes (Ahmed Best). But, his motions and physical presence were subbed out of the final product by a digital character. Much like how they created Gollum. Andy Serkis actually acted through most of the scenes, but he was wearing one of those digital suits like what Tiger Woods wears when they are making his Tiger Woods Golf game. It's a sort of body suit with those white bulbs on his joints that are tracked by computers so they can replicate his real movements digitally. So far as I know, Serkis actually wrestled with Elijah Wood and Sean Astin in the scenes where Frodo and Sam are wrestling with Gollum. It's not as though they wrestled with thin air in anticipation of where Gollum would be digitally inserted.
Someone correct me if I'm wrong.