We see you, voyeur. Behind a camera, at a peephole, stalking, brooding -- you're a metaphor for surveillance states, urban alienation, and lonely sensation. When we can see you, as in The Lives of Others and Rear Window , we identify with you, squirm in complicity, and gaze with our own dirty delight at your gazing. Even when we don't see you, as in Caché , we are forced to see the world through your cold gaze, as if you were an unforgiving eye from our conscience. Red Road is the latest film to put us behind that peephole -- in this case, a closed-circuit TV (CCTV) screen. The first part of this Prix du Jury winner at Cannes takes place behind a whole bank of glowing monitors, each presenting the bleakest, greyest scenery imaginable -- the housing projects of Glasgow, Scotland. Ensconced behind her screens, CCTV monitor and security guard Jackie (veteran television and theater actor Kate Dickie) seems a sad but benevolent presence. She sits with a shadowy smile, watching a stout...