You're in the cinema, already munching your popcorn and watching the trailers. Then some annoying latecomers arrive, blocking your view. Or even forcing you to stand up so they can step on your toes. DDB Barcelona made use of this familiar situation to demonstrate Volkswagen's new pedestrian detection system. The lights go down in a Madrid theater and a trailer begins. When a pair of latecomers arrive, they're lit up by a spotlight and VW's pedestrian warning symbol appears on the screen. A fun and informative way of showing that with VW's motion sensor, pedestrians won't remain unnoticed. The best way to explain a new technology is to show how it works.