That return trip to the alien world of Pandora that fans of the film "Avatar" have been waiting for might take a bit longer than originally thought. 


While the sequels, which are being shot back-to-back, were previously announced to premiere in 2014 and 2015 respectively, Jon Landau recently let slip that those dates might be pushed back. The film producer was speaking at a screening of the forthcoming "Titanic" 3-D when he dropped the news that the first sequel was "four years away" from completion. That would throw them into a timeframe of 2016 and 2017. 


The website Geeks of Doom said that some of the delays might be attributed to rumors of Cameron "wanting to be able to continue using cutting edge 3D technologies and/or that he might want to shoot the sequels at 60 frames per second (most movies shoot at 24 FPS, while Peter Jackson will double that on The Hobbit, shooting at 48 FPS)."


The 57-year-old director, who has been working on the sequel scripts since 2010, recently confirmed in a television interview that the second film will focus on ocean issues. 


“We’ve got a planet that’s a blue planet," he told Nightline. "From a distance, you look at it and Earth is a lot more blue than it is brown — you know, the landmass — and we’re making the oceans unsurvivable for a lot of the species right now. … It’s just a way to focus a little energy in that direction."
“We will see the oceans of Pandora,” he added, ”which we haven’t seen at all, and that’s an ecosystem that I’m dying to start designing, because it's going to look spectacular.”
Cameron is also working to make the next two installments more environmentally-friendly to film that their predecessor. His Lightstorm Enertainment production company recently signed a five-year lease on a new studio featuring “an aggressive water conservation program, eco-friendly paints and cleaning products, sustainable café and craft services practices and a number of programs to promote greener transportation by its employees.”
The director is also footing the bill for a massive solar array that will reportedly provide all of the power needed to shoot the two sequels. “These are things the studios need to be thinking about,” Cameron told the Washington Post. “When I do my next film, we’re going to go much farther than we did in terms of running a green set.”

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

'Avatar' sequels may be delayed
Producer Jon Landau lets slip that first sequel might not bow until 2016.