The point of philosophy is to discover answers to questions. Such as how does the mind work? Is there a mind? What is the right action in a given situation? How do we know we know something? etc. This is not even remotely related to the goals and reasons for art, literature, and film, which exist for aesthetic enjoyment. My point is that for answering most of the questions philosophy tries to answer the best method is the scientific method and its framework of approach.