Will Smith became so attached to his canine co-star in new movie I AM LEGEND, he begged to take the dog home with him. The movie star has refused to get attached to family pets ever since his beloved pooch was killed after getting hit by a car when Smith was nine, but he couldn't help falling for his Alsatian sidekick on the set. He says, "I always refused to become emotionally attached to animals and then I met this dog. "I asked her owner if she could live with me, but she said she had to work."