I watched it and liked it, the acting was good, the cast was great and it looked fabulous.
My only criticism was all the flash forwards and flash backs were annoying. I don't think it helped the story at all to cut up time and show them to us in the wrong order. It is a good enough story without resorting to gimmicky production.
Also, like you, I looked up the real story afterwards, and found that they had omitted that they had another child together, which seemed dishonest to not include in this story.