Realism is always subjective in film. There's no such thing as cinema verite. The only true cinema verite would be what Andy Warhol did with his film about the Empire State Building - eight hours or so from one angle, and even then it's not really cinema verite, because you aren't actually there.
“I was an optimist, a great champion of the human spirit. And I lost that for a time. I feel like I've regained a bit of that in the last few years but there was a period of my life in which I had a very low opinion of people in general.”
“Experimental science is fascinating, but I don't want to do it. I want other people to do it, and I'll read about it.”