Like ‘John Wick’ Gone ‘Clockwork Orange’

In “Boy Kills World,” Bill Skarsgård has burning eyes and model cheekbones, sinewy arms popping out of a dirty red athletic vest, and a feral pout that makes him look like Jean-Claude van Damme crossed with Lou Reed. He plays a deaf-mute avenger, known only as Boy, who kills people in insanely violent ways. Yet through it all, the character retains his innocence. He’s a wounded wild…