In this image released by Allied Marketing, actress Meryl Streep speaks at a screening of her upcoming movie "The Iron Lady" Tuesday, Nov. 29, 2011, in Washington. ((AP Photo/Allied Marketing via KC Photo, Greame Jennings))
January 4, 2012 7:24:50 AM PST
LONDON (AP) -January 4, 2011 --
Meryl Streep says playing Margaret Thatcher was a challenge - but her own experience helped her understand the struggles faced by Britain's first female prime minister.