Despite the fact that by all accounts, Baz Luhrmann is likely well into pre-production on The Great Gatsby — which will likely be shot in Australia, and in 3-D , and feature Leonardo DiCaprio, Tobey Maguire and Carey Mulligan in starring roles — the elusive director refused to admit anything at a dinner for Geoffrey Rush in Brooklyn on Thursday night. “I’m not doing Gatsby right now for this reason,” he told Vulture when asked why he was shooting Gatsby in Australia when his “team” was mostly located in New York. “Because despite what might be out there, I have made no comment about anything. So until I say it, it’s not said, you know.” Not really. Luhrmann explained further , with the clarity of a murky swamp. What it means is, much like what goes on in any event, when you’re in the middle of the work, there’s all sorts of things you’re doing, and, you know, when I’m really clear — I, right now, my only focus is absorbing — I’ve been studying [F. Scott] Fitzgerald now fo