>a former celebrity with little self-awareness, who is incapable of seeing how absurd and ridiculous she appears now that she is no longer powerful...
As someone who has seen it, there's simply no way both of these descriptions of her are true. If you believe that she's guilty of everything she's accused of doing, she's incredibly self-aware and her entire participation in this movie is a desperate Hail Mary attempt to save face in the court of public opinion. At one point in the movie Fielder is having a conversation with another person and says something along the lines of "She's either innocent or maybe the most manipulative person in human history". The movie isn't as concerned with a true journalistic investigation of her guilt or innocence, there are better accounts of that elsewhere and plenty of people who can tell that story better than Fielder. What he seems to be most interested in is the absurd commitment to she has to her claimed innocence and how effective that is or isn't.