KATE Winslet and the cast of Slumdog Millionaire were among the winners at the Screen Actors Guild (SAG) awards. British star Winslet was named best supporting actress for her Oscar-nominated role as a a former Nazi concentration camp guard in The Reader. Slumdog Millionaire, meanwhile, won the ensemble cast prize - the guild's equivalent of a best picture award. Meryl Streep won best actress for Doubt while Sean Penn was named best actor for Milk at the Los Angeles event. "I didn't even buy a dress," joked Streep as she accepted her award. "I am really, really shocked. "Even though awards mean nothing to me any more, I'm really happy." Her delight was shared by Winslet, who said it was "an honour to be included in such a remarkable year and be acknowledged by my peers in this way. "I really feel like everybody should be given a medal," she continued, admitting that she felt "a little bit lost for words." The 33-year-old had also been nominated in the best actress category for her performance in Revolutionary Road. - BBC