What is the definition of long shot theory in movies?

It refers to the continuous performance of a moving picture for a long time to maintain the integrity of the moving picture. In fact, it is a shot taken for a long time, which does not cut the space and maintains the integrity of time and space. This shot keeps the continuity and unity of space and time in the same picture, which can give people a sense of intimacy and realism; The rhythm is slow, so the lyrical atmosphere is strong. Bazin, a French film theorist, put forward a film theory opposite to montage theory according to his "photographic image ontology". Bazin believes that the temporal and spatial continuity of long shots is an important means to ensure the realism of movies. Montage decomposes complete space-time and events, which is extremely unreal. The director decomposed the montage, and with his own subjective consciousness, the audience was not allowed to choose, so he advocated canceling the montage. This theory is of positive significance to emphasize the authenticity of film and television works, but it is too extreme to completely cancel montage. The practice of film and television creation proves that montage and long shots are both needed and should complement each other and develop together. Avoid strictly limiting the audience's perception process, which is a potential ideographic form, focusing on revealing motivation through the normal and complete actions of things. Being transparent and ambiguous, the long lens (lens-paragraph) ensures that the time course of the event is respected, and the depth of field lens allows the audience to see the whole picture of the real space and the actual connection of things. Continuous shooting's lens segment embodies the narrative principle of modern movies, abandons the dramatic ellipsis that strictly conforms to causal logic, and reproduces the natural flow of real things, so it is more realistic.