Believe it or not, the sideshow is the least compelling part of Guillermo del Toro’s Nightmare Alley

Guillermo del Toro was born to make a carnival movie. The Oscar-winning writer-director has spent his career conjuring sympathetic monsters and romantic freaks. (He also modeled his home after a European cabinet of curiosities, a more sophisticated continental cousin to the American sideshow.) So when del Toro…