What happens when cinema shuts up? Matthew Sweet explores those moments when the talkie stops talking and cuts the music dead: the final minutes of William Wyler's Roman Holiday; the heist in Rififi; Oliver Hardy's long despairing look into the camera lens. He also listens hard to those cinematic sounds being silenced by digital technology from the fizz of a reel-change to the wear and tear on a film's soundtrack and asks what we have lost now that cinema is no longer a physical, photochemical medium.