<p>Sam Worthington who played the lead Jake Sully in the first movie has confirmed work has begun on the "Avatar" follow-up, with director Cameron writing a book on which to base the script, reports femalefirst.co.uk.<br /><br />"At the moment, he's still writing what he calls 'The Bible' and detailing the world. Once he's detailed the world - more so than it's already detailed in his big brain, anyway - then, he said he can write the script, and we can go explore the world," said Worthington.<br /><br />"Things like going underwater, going into the floating mountains," he added.The 34-year-old star adds the Canadian director has had some "really cool" ideas about what the sequel would entail.<br /><br />"We've been discussing that with Jim. He has had some ideas he told us, while we were filming, which were really cool and out there," he said.<br /><br />"Avatar" which grossed $2.7 billion worldwide is set to have two follow-up movies, the first of which is due in December 2014.</p>
<p>Sam Worthington who played the lead Jake Sully in the first movie has confirmed work has begun on the "Avatar" follow-up, with director Cameron writing a book on which to base the script, reports femalefirst.co.uk.<br /><br />"At the moment, he's still writing what he calls 'The Bible' and detailing the world. Once he's detailed the world - more so than it's already detailed in his big brain, anyway - then, he said he can write the script, and we can go explore the world," said Worthington.<br /><br />"Things like going underwater, going into the floating mountains," he added.The 34-year-old star adds the Canadian director has had some "really cool" ideas about what the sequel would entail.<br /><br />"We've been discussing that with Jim. He has had some ideas he told us, while we were filming, which were really cool and out there," he said.<br /><br />"Avatar" which grossed $2.7 billion worldwide is set to have two follow-up movies, the first of which is due in December 2014.</p>