film studies vs arts

film studies and arts both are nouns.

Word	Noun	Adjective	Verb	Adverb
film studies	Yes	No	No	No
arts	Yes	No	No	No

As nouns, arts is a hypernym of film studies; that is, arts is a word with a broader meaning than film studies:

film studies: an academic discipline that deals with various theoretical, historical, and critical approaches to films.
arts: studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)

Other hypernyms of film studies include humanistic discipline, humanities, liberal arts.

film studies (noun)	arts (noun)
an academic discipline that deals with various theoretical, historical, and critical approaches to films.	studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)