Continuity Editing

Continuity Editing involves many different aspects of filming, including 180 degree rule and match on action.
The 180 degree rule is a very important part of filming a scene, as it makes the characters/objects in the scene appear like real-life, in relation to the positions they are in and where they are facing. It makes the scene so real that the audience forgets that they are watching a film. It uses a left/right angle aspect for the character/object to look at the camera or away from it, in a certain direction, all the time keeping on one side of a theoretical line, directly through the middle of the set. For example, in a two-shot where the camera is 90 degrees away from each character, the 180 degree line will be directly through the centre of each character's bodies, spanning the length of the scene. It allows the scene to flow better, as if the camera entered the other side of the 180 degree angle at any point during filming, the scene would not flow, and would look different. It also means that the character can only look on one side of the camera, but if there are two cuts with exactly the same positions, then the character can remain in the position they are in for both shots.
Match On Action is a useful aspect of filming, that uses invisible cuts to make the scene link from one shot to another. When the match on action is of good quality, the audience barely notices the change from one shot to the next. For example, in a scene involving a character entering a room through a door, multiple angles can be used to show different points of view, and the combining of multiple shots to make realistic effect means that the character must be in exactly the same position in each shot, and if it is a motion action, then the first shot will show the first part of the motion then the next shot will show the end of it.