You can watch the documentary The B-Side, about photographer Elsa Dorfman on Netflix.
Elsa Dorfman specialized in very large (20x24) polaroid photography. A very kind person. She recently passed away unfortunately. Her website is worth a visit too: http://www.elsadorfman.com/
The Alec Soth / Little Brown Mushroom Youtube series on photography are so great. The series might very well end up being classic documentaries on photography.
Alec Soth handles a wide variety of topics in a very illustrative and entertaining manner. He takes photography from various angles, and takes us on a thematic guide through his photo book library.
https://www.youtube.com/watch?v=IXHuzurhF3g
"My feeling is that we're all wiped out by digital technology streaming zooming and I want to bring more physicality and more serendipity to this medium.