Although a slow starter, this film did keep my attention through til the end. I did appreciate the acting from the lead characters, Zoe Saldana (Avatar: 2009; Guardians of the Galaxy: 2014 & 2017; Avengers: Infinity War: 2018), Imogen Poots, Sydney Wade, and Madison Wolfe (TV & Film). It kept me wondering what would be the ending, as some I had guessed near the beginning, but was fairly well crafted and kept me guessing for the most part.
I have not read the graphic novel that it is based upon, but this film version reminded me of two better films, the 2006 Pan's Labryinth, and the 2016, A Monster Calls.
No bonus material on this DVD.