It is not the movie that it should have been.

Rating: 4/10 (10 February 2019)

I have heard a lot of articulate criticisms of this movie so I'm going to keep it simple.
This could have been an engaging movie if it had primarily told the narrative that its marketing suggested it was: she travels from A to B, avoiding some menace with Medusa/Basilisk rules.
But no. It focuses on this flashback where the protagonist and a bunch of other undeveloped characters in this house under siege from the menace. It's at once very slow and forces way to many characters and ideas into a short space of time. It has too many coincidences, it demands me to admire a character who is actually too reckless to like and Sandra Bullock's character is just cold and annoying.
I played cinema sins and it scored 165. Even the present set part is wasted as it gets eclipsed by this arbitrary theme of maternity. It is completely contrived and unsatisfying. Even if you hated kids, if you had to take care of a couple you would give them names, even if you didn't think about it. You wouldn't call them "boy" or "girl" unless you were making a point. And why didn't the guy name them?
They wasted a great concept and a beautiful setting.
It's watchable in parts but brace yourself to be annoyed.