180 degree rule

The 180 degree rule are what films are usually created using. This is when the shots are only filmed within a range of 180 degrees. For example the imagine below:


This shoes the camera on the right staying in an 180 degree turn to film two characters, this is because the viewers will see it on screen as the characters facing each other. The image you see in the top right corner is what the viewers should see, but the image on the top left shows what it would look like if the camera man went out of the 180 degrees, and show the same people facing opposite ways. By staying in the 180 degree rule it will make the shots look more realistic to watch. The reasoning for this technique is to prevent the viewers from becoming disorientated with what is happening on screen. The 180 degree rule is a necessary when continuity is important to the film.