You may have seen shorter versions of a couple of these clips online, but here are six more full clips from James Cameron’s anticipated Avatar, opening in conventional 3D theaters and IMAX 3D on December 18. The action-adventure stars Sam Worthington, Zoe Saldana, Sigourney Weaver, Michelle Rodriguez, Giovanni Ribisi, Joel David Moore, CCH Pounder, Peter Mensah, Laz Alonso, Wes Studi, Stephen Lang and Matt Gerald.  Show Comments |