"The good Avatar 3D experience happened because James Cameron is a technically savvy director, and thus the 3D aspect of Avatar was technically well executed. When done right it allows the viewer to more seamlessly enjoy a 3D film."
Avatar, by the way, is now available to pre-order on Blu-ray and DVD.
Update: Reviews are beginning to show up on Rotten Tomatoes and they are stellar.
On August 21, the world will get its first look at director James Cameron’s motion picture epic AVATAR, when Twentieth Century Fox and Cameron debut the film’s trailer everywhere – while select cinemas and IMAX® theaters will screen extended footage prepared by the renowned filmmaker for this global “Avatar Day” event.
The worldwide trailer launch will be presented in all formats, including IMAX® 3-D, IMAX® 2-D, digital 3-D, digital 2-D, and 35mm 2-D. The trailer will also be available online.