The sinister carnival sideshow look is alluring, a perfect match for subversive del Toro. His latest, “Nightmare Alley,” probably won’t, but it is nonetheless a far more entertaining and satisfying film than its overrated science-fiction predecessor. The last time Guillermo del Toro directed a movie, 2017’s “ The Shape of Water,” he won the Best Picture Oscar. Rated R (strong/bloody violence, some sexual content, nudity and language).