I stumbled across this after originally sitting down to watch the Goldie documentary The Art That Made Me. Sky showed this straight after so it was a double whammy of graffiti/street art/hip hop culture heaven. Both are must see for various reasons. I was part of the London graffiti movement back in the 80s and Subway Art to me (and dare I say every other aspiring writer at that time) is to what the bible is to religious people..To see the story behind Martha Cooper and what she's been through to chronicle one of the biggest cultural movements in history is extraordinary. The fact she is still taking risks to capture the lengths to what writers go to to "get up" has to be applauded. She deserves even more props due to her still being super active when most people of her age are thinking of putting their feet up and enjoying the latter years of their lives peacefully. She is graffiti. And the funny thing is you wouldn't even know it when you first see her! An amazing woman. Brilliant documentary..