Luise Rainer, a star of cinema's golden era who won back-to-back Oscars but then walked away from a glittering Hollywood career, has died. She was 104. Rainer, whose roles ranged from the 1930s German stage to television's "The Love Boat," died Tuesday at her home in London from pneumonia, said her only daughter, Francesca Knittel-Bowyer. "She was bigger than life and can charm the birds out of the trees," Knittel-Bowyer said. "If you saw her, you'd never forget her."