The Iron Lady (film) in the House of Commons, Costume Design: Pearls and Power Suits, Denis: The Man Behind the Woman". The Iron Lady (film) The Iron Lady is a 2011 British-French biographical drama film based on the life and career of Margaret Thatcher (1925–2013), a British stateswoman and politician who was the first ever female and longest-serving Prime Minister of the United Kingdom of the 20th century. The film was directed by Phyllida Lloyd. Thatcher is portrayed primarily by Meryl Streep, and, in her formative and early political years, by Alexandra Roach. Thatcher's husband, Denis Thatcher (1915–2003), is portrayed by Jim Broadbent, and
Prime Minister of the United Kingdom PM may resign, either purely personally or with the whole government. The Prime Minister generally co-ordinates the policies and activities of the Cabinet and Government departments, acting as the main public "face" of Her Majesty's Government. Although the Commander-in-Chief of the British Armed Forces is legally the Sovereign, under constitutional practice the Prime Minister can declare war, and through the Secretary of State for Defence (whom the PM may appoint and dismiss, or even appoint himself or herself to the position) as chair of the Defence Council the power over the deployment and disposition of British forces. The Prime Minister