Film Guidelines

180 Degree Rule

The 180° rule is a basic film editing guideline that states that two characters (or other elements) in the same scene should always have the same left/right relationship to each other. If the camera passes over the imaginary axis connecting the two subjects, it is called crossing the line. The new shot, from the opposite side, is known as a reverse angle.

Match on Action

A match on action, a technique used in film editing, is a cut that connects two different views of the same action at the same moment in the movement. By carefully matching the movement across the two shots, filmmakers make it seem that the motion continues uninterrupted. For a real match on action, the action should begin in the first shot and end in the second shot.

Shot reverse shot

Shot reverse shot is a film technique wherein one character is shown looking (often off-screen) at another character, and then the other character is shown looking "back" at the first character. Since the characters are shown facing in opposite directions, the viewer subconsciously assumes that they are looking at each other (the 180 degree rule). However, shot reverse shot is also often combined with creative geography to create the sense that two characters are facing each other, when in fact they are being filmed in completely different locations or at completely different times.