The Iron Lady is a 2011 biographical drama film based on the life and career of Margaret Thatcher, a British politician who was the longest-serving Prime Minister of the United Kingdom of the 20th century and the first woman to hold the office. The film was directed by Phyllida Lloyd and written by Abi Morgan. Thatcher is portrayed primarily by Meryl Streep, and, in her formative and early political years, by Alexandra Roach. Thatcher's husband, Denis Thatcher, is portrayed by Jim Broadbent and by Harry Lloyd as the younger Denis. Thatcher's longest-serving cabinet member and eventual deputy, Geoffrey Howe, is portrayed by Anthony Head.