What movie am I thinking of now?

I am trying to remember a particular movie. All I can remember is that a group of people are stuck in an area. I'm not sure if it's an isolated society, another world, or just a remote location. They're playing some sort of deadly 'game', where they are being hunted down, and may die. I think they are trying to escape. I think the movie may also have a futuristic theme. Anyone know the movie?