Avatar was a worldwide smash hit when it was released. It was a game changer in digital FX and started a 3D craze (Did we really need Bieber in 3D?). On Dec 20 an extras special edition will hit the iTunes store. The press release says fans will be able to:
Deconstruct some of the movie’s most memorable scenes to reveal how James Cameron applied special effects to create the breathtaking world of Pandora. This new feature will also enable consumers to interact with the performance capture and visual effects levels in 17 of the film’s scenes. For the first time ever, Green Screen X-ray gives users an interactive look through the visual effects levels to see the original green screen footage behind a pivotal scene.
http://youtu.be/fj03N88Lpx0