If anything that's the part that convinces me it's more than just a documentary, the fact that people apparently don't want to spoil what happens.
Then what was the point of bringing Amanda Seyfried into the "documentary" as a major character?
What does Amanda Seyfried actually have to do with the story of Elizabeth Holmes and Theranos?
Well, yes. We know the plot, but we don't know in what light the movie casts here, and how they do it.
(/s in case it's necessary)