Question: About which political figure is the movie directed by Phyllida Lloyd based?

Context paragraphs:
Lloyd Snow: Lloyd Snow (born January 5, 1943) is an educator and former political figure in Newfoundland and Labrador, Canada.  He represented Trinity-Bay de Verde in the Newfoundland and Labrador House of Assembly from 1989 to 2003 as a Liberal.

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 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, 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.

Phyllida Lloyd: Phyllida Lloyd, CBE (born 17 June 1957) is an English film director, best known for her work in theatre and as the director of "Mamma Mia! " and "The Iron Lady".

Lloyd B. Waring: Lloyd Borden Waring (born July 13, 1902, died October 30, 1997 in Rockport, Massachusetts) was an American investment banker and political figure who served as vice president of Kidder, Peabody & Co. and chairman of the Massachusetts Republican Party.

Lloyd John Muller: Lloyd John Muller (born June 21, 1932) is a farmer and former political figure in Saskatchewan.  He represented Shellbrook-Torch River from 1982 to 1991 in the Legislative Assembly of Saskatchewan as a Progressive Conservative.

James Tilghman Lloyd: James Tilghman Lloyd (August 28, 1857 – April 3, 1944) was a U.S. political figure and a Democratic Representative from Missouri from 1897 to 1917.  He served as the House minority whip between 1901 and 1908.

United States presidential approval rating: In the United States, presidential job approval ratings were introduced by George Gallup in the late 1930s (probably 1937) to gauge public support for the President of the United States during his term.  An approval rating is a percentage determined by a polling which indicates the percentage of respondents to an opinion poll who approve of a particular person or program.  Typically, an approval rating is given to a political figure based on responses to a poll in which a sample of people are asked whether they approve or disapprove of that particular political figure.  A typical question might ask:

Mamma Mia! (film): Mamma Mia!  (promoted as Mamma Mia!  The Movie) is a 2008 British-American-Swedish musical romantic comedy film adapted from the 1999 West End/2001 Broadway musical of the same name, based on the songs of successful pop group ABBA, with additional music composed by ABBA member Benny Andersson.  The film was directed by Phyllida Lloyd and distributed by Universal Pictures in partnership with Tom Hanks and Rita Wilson's Playtone and Littlestar, and the title originates from ABBA's 1975 chart-topper "Mamma Mia".  Meryl Streep heads the cast, playing the role of single mother Donna Sheridan.  Pierce Brosnan (Sam Carmichael), Colin Firth (Harry Bright), and Stellan Skarsgård (Bill Anderson) play the three possible fathers to Donna's daughter, Sophie (Amanda Seyfried).  "Mamma Mia!"  received mixed reviews from critics and earned $609.8 million on a $52 million budget.

Lloyd Harris (politician): Lloyd Harris (March 14, 1867 – September 27, 1925) was a businessman and political figure in Ontario, Canada.  He represented Brantford in the Canadian House of Commons from 1908 to 1911 as a Liberal.

The Age for Love: The Age for Love is a 1931 American pre-Code comedy film (now lost ) directed by Frank Lloyd based on the 1930 novel of the same name by Ernest Pascal.  The film was a vehicle for Howard Hughes' mistress Billie Dove.  The film was a commercial failure, but this did not stop Hughes funding another film for Billie Dove.

Supporting paragraphs: Phyllida Lloyd The Iron Lady (film)
Answer: Margaret Thatcher