Samuel Goldwyn Films has released a trailer for the Larysa Kondracki-directed The Whistleblower, with Rachel Weisz starring as an American police officer who becomes a peacekeeper in post-war Bosnia. Her hopes of helping rebuild the country are dashed when she sees rampant sex-trafficking activity, and apathy or worse among government officials who turn a blind eye to what is going on. Script was written by Ellis Kirwan & Kondracki, and it’s inspired by a true story. Vanessa Redgrave, Monica Bellucci and David Strathairn also star. The film begins rolling out Aug. 5.