Mimic

"A dark, dank and drippy sci-fi shocker that threatens to become something unusual before trailing off into ridiculousness."

"Creepy, beautifully designed horror yarn about mutant roaches that delivers both artfully eerie atmosphere and some boffo shocks."

"But Mimic is superior to most of its cousins, and has been stylishly directed by Guillermo Del Toro, whose visual sense adds a certain texture that makes everything scarier and more effective."