So he did it for free?? Or he got screwed out of his money??
The documentary was a journalistic documentary...
Journalistic documentary subjects don't get paid...
Even producers, the people who put the money rarely get paid...
18 people produced the Freeway Crack in the System Documentary
Freeway: Crack in the System (2015) - Full Cast & Crew - IMDb
You think they made money on the documentary?
A documentary subject will receive stipend for their time.
Free food, free transportation...that type of thing...
It's no different than a jounralist interviewing an activist regarding public education...the activist don't get paid...
An interview subject doesn't work for you. They aren't actors. They are telling their side of a story or a subject.
So yeah...the film game...plenty of things get done for free....now you know