On a U.N. peacekeeping mission in Bosnia, American Kathryn Bolkovac (played by Rachel Weisz) stumbles on a massive cover-up involving some of her fellow peacekeepers and underage sex trafficking.

On a U.N. peacekeeping mission in Bosnia, American Kathryn Bolkovac (played by Rachel Weisz) stumbles on a massive cover-up involving some of her fellow peacekeepers and underage sex trafficking.

Shot by Canadian filmmaker Larysa Kondracki, the bleak film follows Kathryn as she discovers how extensive the conspiracy is and how little power she has to stop it.

At one point Kathryn begs a trafficked girl to come with her to safety, but even the girl would rather stay where she is than risk the brutality that would await her if she attempted to leave.

Based on real events, the film does occasionally go too far into melodramatic cliches, but it’s saved by a strong supporting cast that includes Vanessa Redgrave and David Strathairn. However, it’s Weisz that carries the film and ultimately turns “Whistleblower” into a powerful message against a real human rights tragedy.