Rules of filming

Rule of thirds:

The rule of thirds is a concept in video and film production in which the frame is divided into into nine imaginary sections. This creates reference points which act as guides for framing the image.Points (or lines) of interest should occur at 1/3 or 2/3 of the way up ,or across, the frame, rather than in the centre. Like many rules of framing, this is not always necessary but it is one of those rules you should understand well before you break it

shot reverse shot:

Shot reverse shot is a film technique where one character is shown looking at another character, and then the other character is shown looking back at the first character.

180 degree rule:

In film making, the 180-degree rule is a basic guideline regarding the on-screen spatial relationship between a character and another character or object within a scene. An imaginary line called the axis connects the characters, and by keeping the camera on one side of this axis for every shot in the scene, the first character is always frame right of the second character, who is then always frame left of the first. The camera passing over the axis is called jumping the line or crossing the line

30 degree rule:
The 30-degree rule is a basic film editing guideline that states the camera should move at least 30 degrees between shots of the same subject occurring in succession. If this rule isn't followed a jump cut occurs and there is a risk that the audience starts focusing on the filming technique instead of the story that is being narrated

Match on action:
Cutting on action or matching on action refers to film editing and video editing techniques where the editor cuts from one shot to another view that matches the first shot's action.