The longer, international trailer for superhero horror flick Brightburn delivers some nasty surprises.

Produced by James Gunn and billed as belonging to a “radical new genre: superhero horror” (which also includes M. Night Shyamalan’s Glass), Brightburn subverts the Superman story of an alien baby sent to Earth, substituting a kid who uses his powers to terrify, exact revenge on a school bully, and warp the blade of a lawnmower by hand (don’t try this at home!).

Written by Gunn’s brothers Brian and Mark, and starring Elizabeth Banks and David Denman, Brightburn is coming to cinemas on May 23.