Cinematography  is the science or art of motion-picture photography by recording light or other electromagnetic radiation
I see, do you work as a cinematographer? 
The process involves  a lens  being  used to repeatedly focus the light reflected from objects into real images on the light-sensitive surface inside a camera 
I see, does this process also involve lack of creativity and plagiarism? 
The word cinematography means  "recording motion
I see, do you often have to copy dialogue and other material when recording motion?
sometimes yes, cinematography is used in the  fields of science and business as well as for entertainment purposes and mass communication.
Oh that makes sense, do you come up with your own ideas or just use previous movie scripts?