The last time Matt Damon and Paul Greengrass worked together, we got The Bourne Supremacy and The Bourne Ultimatum. The star and director are back together again, this time tackling the Iraq War, Weapons of Mass Destruction, and a healthy dose of action and intrigue. The new trailer shows off a bit of both, and features Damon in the lead role of Chief Warrant Officer Roy Miller as he leads his team of inspectors in search of WMDs. Miller begins to question his orders when his search turns up nothing but a trail of conspiracies and lies.

Will audiences turn up for an Iraq War movie? History would say no, but The Hurt Locker did well in the specialty market earlier this year and none of the previous war films that tanked had Matt Damon and his Bourne director. Also starring Amy Ryan, Brendan Gleeson, Greg Kinnear, Jason Isaacs, Antoni Corone, and Nicoye Banks, Green Zone hits theaters on March 12, 2010. Hit the jump to see the trailer from Yahoo!