Monster attacks in new extended Avatar clip! (video)

During the live webcast for James Cameron's Avatar today, the filmmakers released a new extended action clip from the upcoming 3-D sci-fi epic, which you can view below.

It features an attack by a "Thanator," which chases Jake Sully's blue avatar around the jungles of Pandora. Enjoy!

Avatar opens Dec. 18; look for SCI FI Wire coverage next week from the film's London press junket.

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