James Cameron told us, when he won all his Oscars for Titanic, that he was "the king of the world".
Sure enough, he proved it 12 years later, creating a brand new universe for his film Avatar.
What we saw on screen was only the tip of the innovative iceberg – in fact, Cameron said his script had been ready since 1999, but he was waiting for technology to catch up with him.
Below are just five of the main advances in screen production the director needed to bring his little blue creatures to life and into the record books...
