I don't think Hollywood makes many good films anymore. How many directors can you really trust to have an artistic vision, not a corporate vision or a watered-down communal one?
Outside the world of politics, one person in the world of the arts I would mention as an influence is Nick Cave, another person who has been around since the late 1970s. He has developed and changed remarkably, whilst remaining true to his vision. He has been a great help to me as well, without his knowing it.
What you're really after when you see a film or listen to a song is a singular vision, and I'm not sure how much of that you really get in Hollywood.