I find the contrast between the two films quite striking. When he is on the street, with a camera in hand, he is ebullient and in his element. The first film brings this out. In the second film, on stage, in an interview, he is a bit nervous and uncomfortable. He clearly doesn't like talking about his work to someone who is as clueless and patronizing as is the interviewer. He lived to work (i.e., photograph), and had no interest in self promotion.
His love of making photographs always makes me smile. Whether you like his work or not, you can't help but admire his intellectual honesty.