Art movies are not understood by ordinary men. They often speak an alien to the common man language and they need an expert to interpret them.
They may be artistically beautiful and sophisticated, but most often they depict human misery, pain, suffering; ugliness or futility of life or they reflect the director’s troubled mind.
Such movies touch only the cinematographic elite, the same way as haute couture excites only the fashion industry people.
They do not inspire the common man or make him think. In order to touch the heart of the common man one has to use the language he understands and to operate on his level of consciousness.