The only photographers to ever merit documentaries being made about them are the ones who photograph New York.

So if you’re in say, Cheraw, S.C. (a vivid, colorful, poor and forgotten town I pass through on the way to visit relatives) and you want to get famous, you have to go take pictures of what generations of shooters have photographed — the changing panorama of NYC.

That’s where Martha Cooper made her name. She left photogenic Baltimore for New York’s grime and glamour.

“A Picture Story” just premiered at Tribeca.