Saw it and not impressed at all. (Williams has never done it for me anyhow...too much of a grey type of actress). Marilyn is FIRE when you see her on screen-(whatever her real persona might have been), and Williams does not have what it takes to project that. Plus, the physique was WRONG. When my mother saw her she turned to me and whispered..."She's toooo skiny...that's NOT Marilyn!" And she's right.
What about Charlize Theron...?
or Lindsay Lohan...?
The stills of both look good, but the story is in how they move. Even sitting still, Monroe moved, quivered, radiated. Offhand, I can't think of any modern actresses who can do that.