‘Camp X-Ray” already feels like a throwback to an earlier era, when Hollywood cared about what was going on at the Guantanamo Bay prison camp for suspected Islamist terrorists.

Kristen Stewart plays a young soldier on guard duty who strikes up a flirtatious friendship with a handsome, clever, Harry Potter-loving detainee (Peyman Moaadi). If al-Qaida published its own Tiger Beat, he’d be on the cover of it.

Stewart’s restrained performance is affecting, the film seems well-researched about what it’s like to try to deal with Gitmo detainees who throw their own feces, and it isn’t as tendentious as the average Hollywood take on the subject. But its message is still essentially the fatuous one that there isn’t much moral difference between the people on each side of the locked doors.