Just like the giant cockroaches in the movie mimic their predators (humans), director Guillermo Del Toro mimics David Fincher's style in "Seven": gimmicky opening credits, excessively dark photography, constant rain, claustrophobic atmosphere. Nonetheless, it is his superior craftsmanship and visual sense that elevates this otherwise standard, conventional monster movie into an above-average standard, conventional monster movie. He is helped, of course, by a capable cast (Mira Sorvino holds her own as the lead), and by the impressively designed creatures, which look much better than the monsters in some more recent horror films. (**1/2)