Synopsis: The remarkable documentary Brothers at War begins with a simple premise: Jake Rademacher wants to understand the experience of his younger brothers Isaac and Joe, both serving in the American military in Iraq. What unfolds proves amazingly complex, fusing a troubled family history (another Rademacher brother died at home), wrenching interviews with wives and girlfriends left behind, and a startlingly unfiltered portrait of on-the-ground soldiers in the middle of a combat zone. Because the filmmaker is already part of these people's lives, he's able to capture a kind of emotional nakedness you don't often see; when Joe's girlfriend talks about how Joe's military service has changed him, a window opens into her life that's almost uncomfortably intimate.