He sounds like a creep. He moves like a ghoul. So even though Andy Serkis doesn't actually appear in the ''Lord of the Rings'' trilogy, the 38-year-old British actor is still generating buzz as the human model for the CG-eye-popping character Gollum. Here's how Serkis and director Peter Jackson created the loathsome creature by mixing real-life acting and digital wizardry. [More]