Somebody was going to get to the bottom of this whole WMD thing eventually — it might as well be Jason Bour…Oh, wait, he’s not Bourne this time? Well, close enough for government work. Matt Damon and Paul Greengrass reunite in the new trailer for Green Zone, verrrrry loosely based on Rajiv Chandasekaran’s Imperial Life in the Emerald City and co-starring Amy Ryan, Brendan Gleeson, and Greg Kinnear. Great cast, and Greengrass hasn’t missed yet — I’m in.