SAN FRANCISCO – JULY 27: A Guinea Pig is held by a worker at the San Francisco Animal Care and Control July 27, 2009 in San Francisco, California. Disney’s new blockbuster film G-Force, which features computer generated Guinea Pigs that save the world, has animal activists worried that people will rush out to buy the small pet only to turn around and abandoned it soon after realizing that guinea pigs require an investment of time to care for them. (Photo by Justin Sullivan/Getty Images)
