Josh Boone has also talked in interviews about how the horror sequel A Nightmare on Elm Street 3: The Dream Warriors will influence his approach to this movie, with New Mutants almost coming across as the first pure-horror superhero movie (with all due respect to Blade).
That’s not to say that the New Mutants movie will be a direct adaptation of the Demon Bear storyline.
This is why the trailer shows off the members of the New Mutants in a psychiatric ward.