Question: What is the middle name of the actress who portrayed the main character in the film based on the first full-length biography of Ayn Rand? 

Context paragraphs:
Goddess of the Market: Goddess of the Market: Ayn Rand and the American Right is a 2009 biography of Ayn Rand by historian Jennifer Burns.  The author explores Rand's intellectual development and her relationship to the conservative and libertarian movements.  The writing of Rand's books and the development of her philosophy of Objectivism are also covered.

Helen Mirren: Dame Helen Lydia Mirren, {'1': ", '2': ", '3': ", '4': "} ("née" Mironoff; born 26 July 1945) is an English actor.  Mirren began her acting career with the Royal Shakespeare Company in 1967, and is one of the few performers who have achieved the Triple Crown of Acting, having won the Academy Award for Best Actress in 2007, after two previous nominations, for her performance as Queen Elizabeth II in "The Queen".  She received an Olivier Award for Best Actress in 2013 for her West End performance in "The Audience", in which she also portrayed Elizabeth II, and in 2015 she won the Tony Award for Best Actress in a Play for her Broadway performance in the play.  "The Audience" was written by Peter Morgan, who also wrote "The Queen".  Mirren won three consecutive BAFTA Awards for Best Actress between 1992 and 1994 and her first of several Emmy Awards in 1996 for her performance as police detective Jane Tennison on the British television series "Prime Suspect", which ran for seven seasons between 1991 and 2006.

Chris Matthew Sciabarra: Chris Matthew Sciabarra (born February 17, 1960) is an American political theorist based in Brooklyn, New York.  He is the author of three scholarly books—"Marx, Hayek, and Utopia"; "Ayn Rand: The Russian Radical"; and "Total Freedom: Toward a Dialectical Libertarianism"—as well as several shorter works.  He is also the co-editor, with Mimi Reisel Gladstein, of "Feminist Interpretations of Ayn Rand".  His work has focused on topics including Objectivism, libertarianism (particularly the work of Friedrich Hayek and Murray Rothbard), and dialectics.

The Passion of Ayn Rand: The Passion of Ayn Rand is a biography of Ayn Rand by writer and lecturer Barbara Branden, a former friend and business associate.  Published by Doubleday in 1986, it was the first full-length biography of Rand, and was the basis for the 1999 film of the same name with Helen Mirren playing the part of Rand.

Ayn Rand: A Sense of Life: Ayn Rand: A Sense of Life is a 1996 American documentary film written, produced, and directed by Michael Paxton.  Its focus is on novelist and philosopher Ayn Rand, the author of the bestselling novels "The Fountainhead" and "Atlas Shrugged", who promoted her philosophy of Objectivism through her books, articles, speeches, and media appearances.

Ayn Rand and the World She Made: Ayn Rand and the World She Made is a biography of Russian-American philosopher Ayn Rand by Anne C. Heller published in 2009.

Who Is Ayn Rand?: Who Is Ayn Rand?  is a 1962 book about Ayn Rand by Nathaniel Branden and Barbara Branden.  It comprises four essays addressing Rand's life and writings and her philosophy of Objectivism.  The book's title essay is Barbara Branden's authorized biography of Rand.  The Brandens subsequently repudiated the book, deeming its approach too uncritical towards Rand.

For the New Intellectual: For the New Intellectual: The Philosophy of Ayn Rand is a 1961 work by Ayn Rand, her first long non-fiction book.  Much of the material consists of excerpts from Rand's novels, supplemented by a long title essay that focuses on the history of philosophy.

Objectivism: The Philosophy of Ayn Rand: Objectivism: The Philosophy of Ayn Rand is a 1991 book by philosopher Leonard Peikoff, in which the author discusses the ideas of his mentor, Ayn Rand.  Peikoff describes it as "the first comprehensive statement" of Rand's philosophy, Objectivism.  The book is based on a series of lecture courses that Peikoff first gave in 1976 and that Rand publicly endorsed.  Peikoff states that only Rand was qualified to write the definitive statement of her philosophic system, and that the book should be seen as an interpretation "by her best student and chosen heir."  The book is volume six of the "Ayn Rand Library" series edited by Peikoff.

It Usually Begins With Ayn Rand: It Usually Begins With Ayn Rand is a satirical memoir by libertarian political activist Jerome Tuccille.  It was first published by Stein and Day in 1971.  The title refers to novelist and philosopher Ayn Rand, whose work Tuccille describes as many activists' introduction to libertarian ideas.

Supporting paragraphs: The Passion of Ayn Rand Helen Mirren
Answer: Lydia