film editing

What film editing is

Film editing is the selection, arrangement, and joining of the individual shots recorded during filming into a single continuous work. A film is shot in fragments, often out of sequence and in multiple takes; editing is the stage at which those fragments are chosen, placed in order, given their final durations, and joined. Because meaning in a film arises not only from what each shot contains but from the order and rhythm in which shots follow one another, editing is widely regarded as one of the medium’s defining operations, distinct from the photographic work of cinematography and from the material recorded before the camera.

The basic unit is the shot, a single uninterrupted run of recorded image, and the basic operation is the cut, an instantaneous change from one shot to the next. Editors also use gradual transitions: the dissolve, in which one shot briefly overlaps and replaces another; the fade, a transition to or from a blank field, usually black; and the wipe, in which a boundary moves across the frame to reveal the next shot. Sound is edited alongside the image, and the relationship between the two — whether they change together or independently — is itself an editorial choice.

Continuity editing and montage

Two broad approaches are commonly distinguished. Continuity editing, the dominant mode of mainstream narrative film, arranges cuts so that they are not consciously noticed, preserving a clear and continuous sense of space, time, and action across shots. Conventions such as matching action across a cut, keeping consistent screen direction, and following an establishing shot with closer views serve this goal; the approach is sometimes called invisible editing because it aims to subordinate the cut to the story.

The contrasting tendency, montage, treats the join between shots as an expressive device in its own right, using the collision or juxtaposition of images to produce meaning, emotion, or rhythm rather than to conceal the passage between them. In this usage the term refers to a theory of editing associated chiefly with Soviet filmmakers of the 1920s; in later, looser usage it also names a sequence that compresses time through a rapid series of images.

Soviet montage theory

An influential body of theory about editing developed in Soviet cinema in the 1920s. In experiments attributed to Lev Kuleshov, an identical shot of a performer’s face was reported to seem to express different emotions depending on the shot it was paired with — hunger, grief, or desire according to what preceded it. This observation, known as the Kuleshov effect, is cited as evidence that a shot’s meaning can derive from its juxtaposition with others rather than from its content alone.

Sergei Eisenstein developed montage into a broader theory, holding that the collision of two shots could generate an idea not present in either shot by itself, and that such conflict could organize a film intellectually and emotionally. These ideas, together with the writings of contemporaries such as Vsevolod Pudovkin, were set out in essays that remain standard references in film theory. They are presented here as historically significant positions rather than as settled fact; their claims, including the extent and reproducibility of the original Kuleshov demonstrations, have been debated since.

The editor and the shift to digital

The film editor is the practitioner responsible for this work, usually collaborating closely with the director to assemble successive versions of a film — from an initial rough cut toward a final cut that is eventually locked for finishing. For most of the medium’s history the task was physical: strips of exposed motion-picture film were cut with a blade and joined with splicing tape or cement, and revisions meant recutting the physical film, a process central to film history through much of the twentieth century.

From the late twentieth century, editing moved to nonlinear digital editing, in which footage is stored as digital files and manipulated on computer workstations. Because any point in the material can be accessed directly and edits are recorded as instructions rather than as cuts in a physical strip, changes are non-destructive and freely reversible. The underlying decisions — which shots to use, in what order, and for how long — remain the same, but the digital method largely replaced physical splicing as the standard means of carrying them out.