The documentary Stray Dog of Tokyo was on YouTube, but I think it has been taken down. Here is another, though.
I have such a liking for his work and methods, even though my work looks nothing like his. His book, Memories of a Dog, is one of my favourites. It's a series of essays he wrote for a Japanese photography magazine, illustrated with his photographs and discussing his methods and philosophy. He talks about returning to places he once inhabited and capturing them again, a sort of retroactive memory. I must get back to that book.