Glossary of motion picture terms
This glossary of motion picture terms is a list of definitions of terms and concepts related to motion pictures, filmmaking, cinematography, and the film industry in general. == 0–9 == 180-degree rule A basic guideline regarding the on-screen spatial relationship between a character and another character or object within a scene.
Source: Wikipedia — Glossary of motion picture terms (CC BY-SA 4.0)