Cinematography is a relatively distant subject. The reason why the word "remote" is said is that before the combination of disciplines, only a few universities in China had doctoral programs in cinematography. Besides the professional colleges such as Nortel and Zhongchuan, some local universities also had them, which used to be a major subject of literature. Now, after art has become a 13 discipline, movies, plays and dramas that originally belonged to the literary category have been merged together.