This program shows the shooting of a period scene on a noisy location. Follow three possible dialogue replacement procedures including the original method in which the film and guide track are cut into short loops, the 'rock and roll' procedure using synchronous rollback, and the modern Automatic Dialogue Replacement or ADR method. For each procedure we see exactly how guide tracks are prepared, how the recording sessions is executed, and finally how the new tracks are integrated with sound effects and music to create a polished final track.