The first trailer for Camp X-Ray has been released, and while we were initially skeptical about Kristen Stewart being cast as a Guantanamo Bay prison guard, this clip has us pretty convinced.

K. Stew plays Pvt. Amy Cole, a U.S. soldier who forms an unlikely friendship with one of the detainees at the prison. From her character breaking down to a number of torture scenes, this film looks pretty gritty -- and it's been getting decent reviews thus far.

On picking her film roles post-Twilight, Kristen recently told Elle magazine, "Never at any point have I sat down and plotted how I should proceed from here on. As soon as you start thinking about your career as a trajectory -- like, as if you're going to miss out on some wave or momentum -- then you're never doing anything for yourself anyway. Then you're truly, actually, specifically working for the public. You're turning yourself into a bag of chips."

Camp X-Ray hits theaters on October 17.