Ten astronomical furnaces in the sky as a reward for Banksy's thoughts and how they are expressed, and also to the creators of the doc for tenaciously following the leads searching for each day's presentation (in NY traffic no less) and then adding a range of pov interviews. But, lowered a couple of stars to express disgust with the greed and narrow self-interests of those who took advantage of the attention to enhance themselves by damaging, stealing and selling. Further disgust to the politicians, developers and property/slum owners in deriding the street art as defacing when they are either distant from or profit from those already visually debasing structures. And, where renovations occur they often give most benefit to the distant wealthy and connected.