So remember that first full trailer for Baz Luhrmann's 'Great Gatsby?' Remember how strange it was that a movie based on a novel written, and set, in the 1920s began with Jay-Z/Kanye's "No Church in the Wild?" Well it looks like that wasn't simply a piece of attention-grabbing marketing. It has just been confirmed that Jay-Z will in fact be scoring the film along with a group called The Bullitts.…