Andy Serkis, a respected British thespian, is sitting in a book store in the West End, in front of a carpet of sixty primary school children, explaining how he worked on the voice of Gollum in Peter Jackson's Lord of the Rings trilogy. Gollum - for the two people who've not read Tolkien's saga - is a shrivelled, wily creature torn between helping the heroes destroy a magical ring which has soured his existence, and an all-consuming desire to posess it for himself. [More]