Let's meet in the lobby 6:15-6:30ish for the 6:45 show.
I typically don't like 3D movies unless the film is either stop-motion animation (Paranorman, Coraline, Frankenweenie) or a drama, as counterintuitive as that sounds. I feel big action movies don't work well with 3D because there's just so damn much camera movement and action flying around that my eyes never settle enough to appreciate the effect. For example, my favorite 3D scene in Avatar, bar none, was when the drill seargant is lecturing a class of students. Seriously. The depth of field between the rows of seats was amazing.
Anyway, although I know next to nothing about Gatsy, I do know that as a director Baz Luhrmann has an amazing visual style and I can only imagine what those lush set peices will look like in 3D on a mammoth screen. Also, WGBH's film critic Jared Bowen raved about this one. And I dig Jared's taste.