Was a little confused after I read an article in TODAY newspaper. There was a review of LOTR:TTT and the writer praised the actor who played Gollum, Andy Serkis stating that he was a likely contender for an Oscar for best supporting actor. I was puzzled because before this article, I had been thinking that Gollum was a pure CGI effect. So, why was there an actor involved? So, I depended on ol'trusty google and got the answer here . Interesting..what technology can do nowadays..! A digitically enhanced actor..!