There's a fascinating bit in The Vow where Mark Vicente admits he directed the quantum-mystic "documentary" What The Bleep Do We Know?! and then does exactly zero introspection into how his work primed himself and others to be exploited by people like Keith Raniere

The prob with a lot of cult documentaries is that a lot of them have the message "anyone could join a cult" and it's always said by someone who has been in multiple cults.