Editing is used to make motion pictures flow coherently between scenes and enhance visual effects. There are typically three stages of editing: rough cut, director's cut, and final cut. Editing techniques like shot reverse shot and the 180-degree rule help generate meaning and keep narratives coherent by facilitating the audience's understanding of characters' perspectives and spatial relationships. Timing, continuity, and invisible editing are important aspects of constructing suspense and maintaining realism in films.