Impressionist composers have a tendency to "blur" musical lines in order to create vague tonality, dissonance, and ethereal timbre. In addition, these types of composers prioritize the mood and emotions more than the technical aspect of music. One famous impressionist composer is Claude Debussy.
A movie can be a product of a career in the arts because someone can use film to express a art form or use it as a way to show there art, even make it poetic. Hope this helps! :D