Art may be created for many reasons including:
a. Propaganda
b. Scaring away evil spirits
c. Recording reality
d. All of the above

For me I think it's A.

Explanation:

Think about how is art created. It can create a sense of beauty, to explore nature perception, generating strong emotions and many more.

there is not really a certain expensive film type but i believe all of them cost mostly the same price, i hope this a little bit