Ron Mueck, the hyperrealist sculptor, learned his craft making models and puppets for television and movies. He was nearly 40 when his work came to the attention of Charles Saatchi. At Saatchi's urging, he began to show his sculptures in gallery and museum contexts in the late 1990s. They met with astonishment and praise, particularly Dead Dad, a silicon and mixed-media model of Mueck's father's body, perfectly proportioned but less than four...