Guillermo del Toro's effectively creepy bug movie is a fast-paced, exciting (and gooey) thriller starring Mira Sorvino. However the film has a mainly "been there, done that" story about a deadly virus called Strickler's disease, that is killing many children, and Sorvino's character finds a cure by genetically- modifying cockroaches. The nasty critters get set free in the world, and several years later people start getting picked off by giant bugs that have evolved to "mimic" their predator: Man.
The action, which mostly resides in the trademark underground railway tunnel, is inventive, and there are some genuine shocks and twists along the way. The messing with nature theme has been done before (Jurassic Park), and the film is very similar to The Relic. But there is a strong environmental message that, while good, thankfully isn't heavy-handed and doesn't get in the way of some cool bug-splosions and hapless kids getting munched. Disgusting fun.