A jump cut is a film editing technique that breaks a single continuous sequential shot of a subject into two parts, with a piece of footage removed to create the effect of jumping forward in time. The camera positioning on the subject across the sequence should vary only slightly to achieve the effect. The technique manipulates temporal space using the duration of a single shot, fracturing the duration to move the audience ahead. This kind of cut abruptly communicates the passing of time, as opposed to the more seamless dissolve heavily used in films predating Jean-Luc Godards Breathless, which extensively used jump cuts and popularized the technique in the 1960s. Jump cuts tend to draw attention to the constructed nature of the film and are sometimes considered a violation of classical continuity editing, which aims to give the appearance of continuous time and space in the story-world by de-emphasizing editing. However, jump cuts are sometimes used for creative purposes. Some filmmakers believe that jump cuts are inherently bad because they call attention to the constructed and edited nature of the film. The 30-degree rule is a guideline used in continuity editing to avoid the appearance of jump cuts. It advises that for consecutive shots to appear seamless and continuous in time, the camera position must vary at least 30 degrees from its previous position.