The first trailer has been released for the political thriller The Whistleblower, which debuts in theaters nationwide on August 5. Click on the video player below for your first glimpse at this drama based on a true story, which stars Rachel Weisz, Monica Bellucci, Vanessa Redgrave, and David Strathairn.

Inspired by actual events, Kathy (Academy Award winner Rachel Weisz) is an American police officer who takes a job working as a peacekeeper in post-war Bosnia. Her expectations of helping to rebuild a devastated country are dashed when she uncovers a dangerous reality of corruption, cover-up and intrigue amid a world of private contractors and multinational diplomatic doubletalk. Directed by first time filmmaker Larysa Kondracki, the film also stars Academy Award winner Vanessa Redgrave, Monica Bellucci and Academy Award nominee David Strathairn.