In addition to using montage for narrative sequence, proper editing for any decent film, even those without a specific form of narrative driving the film. Continuity editing means that the audience is unable to tell where each shot ends and another begins, even though the different shots were taken for the same scene from the same camera angle. This seamless transition is important for viewers' emergence, which keeps their rapt attention on the action and allows the director's message to come across clearly and the film to be memorable for viewers. Although cinema is all about innovating and modifying what is known as storytelling, many directors still adhere to what is known as the 30 degree rule which dictates that whenever a cut occurs from several shots, the camera should move at least 30 degrees in either direction. side. This can be a medium shot or a close-up, a change of location for the action, the use of reverse shots for a conversation between characters, and so on.