The New Mutants (Josh Boone, 2020) isn't the complete disaster I expected. Blending the superhero and horror genres makes the difference, transforming a generic superhero coming-of-age story into a mildly interesting, claustrophobic chiller. Tonally, the film is, at least, consistent; this time around, the mutant teens study not in a palatial mansion, but an abandoned ruin, and rather than the sympathetic Professor X, their mentor is, essentially, a mad scientist. It's all very gothic and rusty, with a few effective freakout moments.
That the characters feel true to their comic book origins also helps, as do the performances; the actors do pretty well with a bland screenplay, and their abilities are captured quite faithfully by the visual effects. It's also nice that this is the first mainstream majority-women superhero team to appear in film. (It would be nice to see more of that; there's no reason Disney or Warner couldn't assemble a mostly-women team of Avengers or Justice Leaguers.)
The plot, however, is by-the-numbers teen angst; there's a nice kid, a mean kid (good at heart, of course), a blossoming romance, rebellion against authority, awakening adolescent sexuality, and finally the necessary teen bonding, the resolution of their inner turmoil through the conquest of horror, and finally the promise of further adventures (a promise surely to be broken, now that Disney is taking over production of the X-Men films).
This is not to say that The New Mutants is good; merely that the filmmakers avoided a Dark Phoenix-level catastrophe. And so the Fox X-Men films go out with a reasonably dignified whimper.