"I think there was a period of time that people thought, well just because it's in 3D, it's worth seeing, and we're evolving past that and we should. Eventually, we'll reach a point where it won't even be worthy of comment."

Cameron will re-release his "Titanic" in 3D - a painstaking 2D conversion process that will take a year to complete. He's also gearing up for the "Avatar" sequels - with hopes of having them in theaters by Christmas 2014 and 2015. 

He refused, however, to give any plot insights just yet.

"Look, I've leaked a little bit and there's not much more I want to say at this point, until we start actually making the film and bringing some of the imagery out to the public."

Cameron has also announced a joint venture with the Walt Disney Company, which has secured the films' rights to create an "Avatar" land at its Animal Kingdom theme park in Orlando, Florida - to the cost of 400 million dollars. 

Construction is estimated to take five years - and will eventually be added to Disney's other parks around the world.

"We're not just doing one attraction, one ride show. We're doing multiple attractions, environments, places where you can go to live, eat, breathe, smell Pandora. You know, be in Pandora. Because what did people say when they saw the movie, the fans of the film? I didn't want to come back to Earth. I didn't want to come back to my day-to-day reality. Well now you have something that you can touch as well as see, which I think is going to be really phenomenal."

The Disney "Avatar Land" will include elements of all three "Avatar" movies - and Cameron said he and his team will be hands-on in creating and designing the entire experience.

The original "Avatar" has grossed more than 2.7 billion dollars worldwide. It's now available on Blu-ray, DVD and digital download.