I haven't finished watching this but I do intend to. I have to say that the fact is, the two actresses could never pass for white EVER lol. So I was never really sutured into the narrative. The actress Ruth Negga in particular, looked like they had just powered her up in white and thought that would be enough. I could envision Halle Berry maybe? or Rashida Jones or anyone else in these two pivotal roles. I understand the makers are caught between a rock and a hard place as you want an African American actress to play these roles definitely and both actresses are incredibly talented but not right for these roles physically.
I'm just going to suspend my belief so that I can finish the movie as apart from the casting, what a fantastic movie that could have been so much more with the right two women in the lead roles.