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Have you ever wondered why movies are so obsessed with clones? Sometimes it's the only technology that will let you tell the story you have in mind -- an evil corporation needs to farm spare body parts, or the Alien franchise needs to clone Ripley back to life. But other times, like with the clone armies of the Star Warsprequels or the Jurassic Park scientists going out of their way to say that they're cloning the dinosaurs, it's almost like blockbuster movies are just looking for an excuse to get the concept of cloning into the mix. In real life, clones are pretty boring. Cloned sheep are the same as regular sheep, and on its surface, even human cloning is only as interesting as identical twins.