Rockstar will be at PAX East 2012 this week and they're bringing with them a heaping helping of Max Payne 3 goodness. Rockstar will be located at booth 912 where you can play the game, and possibly get your hands on some Max Payne 3 branded goodies. While Rockstar hasn't officially stated it, my bet is that you'll be getting some time with multiplayer at the very least.
Speaking of which, did you see our recent single and multiplayer preview of Max Payne 3? We're just two months away from the official release on the PC, Xbox 360 and PlayStation 3.