Although the real life of the psychopath is fascinating, this film could be more journalistic. I did see a version of TV interview about this Rockefeller impostor a few years back. He certainly did fool a lot of folks. However, truth to be told by the journalists seemly convinced me more.
This one tried to weave those human factors into the story was not particularly impressive. Documentary can be a good story telling alone by itself. Interviewing related characters should not be the focus. It would better be chronically listing frauds and misconceives this impostor had done to lead to his arrest. Impersonating someone is not a crime itself legally unless it causes any harms to victims. Apparently, he did not cause enough distractions to others to turn him in earlier until 2008. He was charming to those soft ears. People were fooled by him because they also saw his values to help them to climb up social or career ladders. He never really met anyone in the upper class society otherwise he would have already been exposed. His ex-wife wanted to believe she married into the Rockefeller so she did not even check his past. She thought somehow she finally could be proud of her femininity to attract a classic American Aristocracy. Everyone has his or her own vulnerability. Knowing yours would definitely protect yourself from those fouls.
The story of "Catch me if you can" which Steven Spielberg adapted it into a comedy is very much alike. However, the main character never harmed anyone physically. This Rockefeller impostor is a convicted murderer which makes it impossible to make his story into other than thrillers. I am somehow disappointed by this documentary. If you are familiar with the case, you can skip it.