With Cabin Fever (2002) and Hostel (2005), Eli Roth has proved himself an expert at giving 70s grind-house horror a contemporary satirical spin: the latter movie cleaned up at the box office with its bowel-twisting scares but also mercilessly tweaked the crass, ignorant American tourists who make the world their playground. Like the original, Hostel: Part II is impressive for its smooth foreshadowing, flawless pacing, and eerie use of sound, though you may have to be a gore hound to appreciate its grisly torture-porn sequences. Roth’s dark humor and lacerating view of human weakness sometimes suggest George Romero; what he lacks is Romero’s stubborn belief in personal morality. With Jay Hernandez, Lauren German, Bijou Phillips, and Heather Matarazzo. R, 94 min.