New concept art images from James Cameron's sci-fi epic Avatar

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Dec 14, 2012, 3:54 PM EST

The French HDvision Web site has scored what appear to be concept art images from James Cameron's upcoming top-secret sci-fi epic Avatar. More after the jump.

MarketSaw apparently confirmed with Fox that the art is genuine.

The one image shows the Power Suit (reminiscent of the Power Lifter from Cameron's Aliens) that is used on an alien world. The other is some kind of aircraft. It's not clear whether these images represent final concepts or early designs.

The 3-D Avatar centers on ex-marine Jake Sully (Terminator Salvation's Sam Worthington), who is torn between duty and honor when he finds himself caught in a battle between the heavily armed forces of Earth's most powerful star-faring consortium and an exotic, noble alien race whose entire world is threatened by the human invaders.

Avatar also stars Star Trek's Zoe Saldana and Cameron's Aliens star Sigourney Weaver. It opens Dec. 18.

(Thanks to Ain't It Cool for the heads-up.)