Film editing is both a creative and a tech part of the post-production process of filmmaking. The term is derived from the traditional process of working with film which increasingly involves the use of digital technology.here is a law of natural cutting and that this replicates what an audience in a legitimate theater does for itself. The more nearly the film cutter approaches this law of natural interest, the more invisible will be his cutting. If the camera moves from one person to another at the exact moment that one in the legitimate theatre would have turned his head, one will not be conscious of a cut. If the camera misses by a quarter of a second, one will get a jolt. There is one other requirement: the two shots must be approximate of the same tone value. If one cuts from black to white, it is jarring. At any given moment, the camera must point at the exact spot the audience wishes to look at. To find that spot is absurdly easy: one has only to remember where one was looking at the time the scene was made. Film editing is both a creative and a tech part of the post-production process of filmmaking. The term is derived from the traditional process of working with film which increasingly involves the use of digital technology. The film editor works with the raw footage, selecting shots and combines them into sequences which create a finished motion picture. Film editing is described as an art or skill, the only art that is unique to cinema, separating filmmaking from other art forms that preceded it, although there are close parallels to the editing process in other art forms such as poetry and novel writing. Film editing is often referred to as the 'invisible art' because when it is well-practiced, the viewer can become so engaged that he or she is not aware of the editor's work. On its most fundamental level, film editing is the art, technique and practice of assembling shots into a coherent sequence. The job of an editor is not simply to mechanically put pieces of a film together, cut off film slates or edit dialogue scenes. A film editor must creatively work with the layers of images, story, dialogue, music, pacing, as well as the actors' performances to effectively 're-imagine' and even rewrite the film to craft a cohesive whole. Editors usually play a dynamic role in the making of a film. Sometimes, auteurist film directors edit their own films, for example, Akira Kurosawa, Bahram Beyzai and the Coen brothers.