This is literally street use of technology. Projecting films for the neighborhood at night is not a new idea, but hi-tech digital projectors make it possible on a much smaller scale. In New York City a group called Rooftop Films will rent equipment or help communities set up movie projections during warm summer nights. But anyone with a cheap digital projector can do their own show in their own neighborhoods. You need a large white wall or screen, a projector, DVD player, sound, lots of chairs and a warm night.