180 Degree Rule

The 180 degree rule is  a significant rule in filming. As it keep the focus of the viewers and avoids confusion. The rule is, that once the scene has been set, the camera must stay on one side, and must not have a shot from the other side. when following the 180 degree rule, an imaginary line is used that runs straight down the middle of the scene. An example of this is:

Once this line is in place, the camera can move anywhere providing it stays on the same side of the line as demonstrated in the digram.