As far as the gruesomeness of the movie you've made of heard of, if you can make it past the inciting incident then you can make it through the film.
Such a tender, romantic love story wrapped up in a horror movie and a fairy tale. It really is moving and terrifying. Sometimes both at once.
Some great world building here.
Go in as blind as possible. Avoid the trailers.
Trent and Atticus did the score. Their sound is evolving. Most of it didn't sound like them. Some of their trademarks do make it in here.
Saw it in a Dolby screening room with Laser projection and Atmos sound with 88 speakers surrounding me. Wish this was getting a Dolby Cinema release as the sound design is crazy.