By now, you've seen the trailer: Halle Berry, wearing an unglamorous poof of hair, plays Jordan, an emergency dispatcher. Amid the frenzy of ringing phones and the tap-tap of keyboards—"911, where's your emergency?"—Casey (Abigail Breslin) dials in a plea for help: She's been kidnapped and stuffed into the trunk of a car. Through some silly plot machinations, Casey has an untraceable cell phone with her. It's Jordan's job to talk the girl to safety. What follows is a nail-biting, near-real-time game of cat-and-mouse that's far smarter and more suspenseful than the trailer would have you believe. That is, until the final 30 minutes of the film, when director Brad Anderson decides to borrow from every bad horror movie trope in the book. It's still worth seeing, but maybe not right away.