This looks really good actually. I think it would be more believable if they said this wasn't Marilyn but a woman based off of Marilyn and her life. I can see the way she speaks and her mannerisms in Michelle so I give her props for pulling that off, but her face just looks nothing like her. She's SUCH an iconic figure too it's hard to not be put off by someone being her, without even resembling her. Otherwise this looks great and it looks like she did a great job.

I know there have been loads of bio-type-pics done on others and more often than not the actor doesn't resemble the person they're playing in the slightest, but like I said, Marilyn was SUCH an iconic figure (for her looks as well) it's really, really hard to not notice in this movie.