Some guinea pig rescue groups have already posted pleas to those who might rush out to buy the furry little rodents. "I can tell you, every single rescue in the United States and abroad took a look at that movie trailer and said, 'Oh God, here we go,'" said Whitney Potsus, vice president of The Critter Connection, Inc., in Durham, Conn.

The Orange County Cavy (aka guinea pig) Haven in Costa Mesa has already posted urgent Internet pleas to parents asking them to say no when their children beg for guinea pigs, because the animals are too fragile for young children.

It's happened before. Some call it "101 Dalmations syndrome," after the live-action Disney movie that sent thousands rushing to buy the black-and-white spotted pups. When the dogs failed to act like those in the movie, families gave them up, breeders said.

The popularity of Chihuahuas soared after the movies "Legally Blonde" and "Beverly Hills Chihuahua" and when Taco Bell featured a talking one in an ad campaign. Ferrets were the animal of choice after "Along Came Polly" and guinea pigs were in demand after "Bedtime Stories."

In "G-Force," which opens Friday, Agents Juarez, Darwin and Blaster drive cars, parachute, use blowtorches, swim, talk, walk on two legs, live in tanks with mice and rats and use hamster balls, Lyn Zantow, a volunteer for the Orange County group, warns on her Web site.

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