As well as using the intersections you can arrange areas into bands occupying a third or place things along the imaginary lines. Using the Rule of Thirds helps the final media product be “nicely balanced” and it will seem easier on the audience’s eye. Also it can stop the main subject from being surrounded by a vast empty space. 180 Degree Rule
The 180° rule is a film making guideline that is rather basic. It says that two elements such as characters or objects of importance should always have the same left/right relationship to each other. If the camera passes over the imaginary axis connecting the two subjects, it is called crossing the line. The new shot, from the opposite side, is known as a reverse angle.

