It wasn't about Theranos though, but the person behind it. I would say this comment sums it up: https://news.ycombinator.com/item?id=50137988 - so much of the screen time is dedicated to (A) the New York Times quote about if Holmes actually said "They’re not playing me. They’re playing a character I created", and (B) whether or not she knew about the money Billy asked for.

And, with (spoilers) the final prison visitation exchange, honestly it's pretty telling that she probably was just being manipulative the entire time because she doesn't seem to care that Billy asked for the money.

In a way, this documentary was probably _going to_ be about exploring the factual matters and whether or not she knew she was actually guilty or had some level of remorse. There are many aspects of that in the film. But Billy asking for the money to sign the appearance/likeness contract seems to have derailed Lance and Nathan's original intention for the movie, since that ask - and that Holmes stepped away - directly plays into whether or not she is this incredibly manipulative person.

!!! SPOILERS !!!

I agree. The EH portrayed in this movie is much more sympathetic than the one portrayed in the Carreyrou book, and in Dropout. Fielder obviously knows all of this, and he is consistently interested in the "meta" levels of storytelling. So I don't think the point of the movie is as simple as "but wait, maybe she is actually innocent!".

One point seems to be mindfuckery -- EH making Nathan unsure of who she is, and when she is being honest; him doing the same to his audience; even Amanda seems to get in on it. For example: when Amanda and Nathan are in front of the fireplace talking about Nathan's visit to EH in prison: was that scripted? Or was it a genuine conversation? Or an improvised conversation (with an agreed set of points to be made)?