Composition is the art of arranging objects in a frame. There are actually shapes and alignments that people find pleasing. But film composition also needs to tell a story. The arrangement of your objects and actors in a frame can add to your storytelling. You do this by emphasizing some objects and de-emphasizing others. Composition is an essential part of cinematography. Read more on the basics of cinematography here.

https://www.videomaker.com/article/c02/18610-the-basic-rules-of-composition/

URL: What is composition and why is it essential in filmmaking?