Continuity editing is the process, in film and video creation, of combining more-or-less related shots, or different components cut from a single shot, into a sequence so as to direct the viewer's attention to a pre-existing consistency of story across both time and physical location.
Often used in feature films, continuity editing, or "cutting to continuity", can be contrasted with approaches such as montage, with which the editor aims to generate, in the mind of the viewer, new associations among the various shots that can then be of entirely different subjects, or at least of subjects, less closely related, than would be required for the continuity approach.
The establishing shot can be used at any time as a reestablishing shot.
This might be necessary when a complex sequence of cuts may have served to disorient the viewer.
The establishing shot is one that provides a view of all the space in which the action is occurring.