Love it or hate it, you better get used to it.
Some folks aspiring to high public office in the USA are going beyond writing books (or having books written for them) and are going to have flattering "documentaries" made about themselves, as well as unflattering documentaries made about their opponents. The documentaries will all be touted as "independent," but those that truly are independent will become more and more rare.
Naturally, the candidate himself/herself will not control the work, but will hope to benefit from it; and equally naturally, those who perform the work will naturally expect some sort of compensation for their efforts. None dare call it "bribery," of course, because bribery is a crime and the making of phony-baloney documentaries is not a crime.