It wasn't really about Marilyn ...

It was about the director.
The director (Andrew Dominik?) is so impressed with himself that he is constantly doing little directorial gimmicks like he is trying to be Lynch or something. It gets preposterous quickly. Long abortion scenes with internal-vagina-cam. Repeating camera zooms to ringing phone. No less then 5 long scenes of various fetuses and even some lines for the fetus (not lying). Dates given seemingly at random but actually at points the director enjoyed filming. He is definitely way more focused on his "amazing" techniques than he is on delivering a story about MM.

I would not have watched more than 10 minutes were I not sort of trapped where I was watching it. All five people watching detested it and 3 of them were serious Monroe fans. They nearly turned it off at the 1:45 mark but voted to endure the last hour because "we came this far."

I thought Armas was ill-cast for this role but did a passing job (though it was mostly because she can cry well ... and did cry through the whole movie).

There were only 2 scenes that drew me into the film at all. They were some of the rare tear-free ones. The rest of the movie was exploitative and "Look how I direct THIS part!"

4/10 worst I have seen this year, though I might have only seen a dozen or so. The bar has plummeted.