The importance of editing in film-making cannot be stressed enough.
At its simplest editing can remove bad takes and shorten sequences, but when film-makers fully harness its power they can create meaning where none existed and take audiences on emotional journeys.
The most common form of editing is continuity editing. In this editing style, shots from different angles are cut together to create a sense of continuous movement and continuity.
This creates the impression that time and space remain consistent within the scene, even if the shots have been filmed at different times.
A key aim of this style is to ensure that no single cut calls attention to itself and that nothing strikes the viewer as confusing or inconsistent.
When continuity editing is applied correctly we may not notice the individual cuts.
However, continuity editing itself cannot work if film-makers do not follow these rules: