Question: When was the person who adapted "Asylum" for the screen born?

Context paragraphs:
Asylum (2005 film): Asylum is a 2005 Anglo-Irish drama film directed by David Mackenzie and made by Mace Neufeld Productions, Samson Films, Seven Arts Productions, Zephyr Films Ltd and released by Paramount Classics.  It is based on the novel "Asylum" by Patrick McGrath and was adapted for the screen by Patrick Marber and Chrysanthy Balis.

Michael Irving: Michael Irving is an actor of both stage and screen born in 1943 in Ipswich, Suffolk.

Eugene Washington: Eugene Washington is a British actor of stage and screen born in Hammersmith, London, England, UK.

Refugees and asylum in Russia: The Russian Federation's Law on Refugees defines who is a refugee for purposes of obtaining asylum in the country.  The Law defines a refugee as a "person who is outside his/her country of nationality or habitual residence; has a well-founded fear of persecution because of his/her race, religion, nationality, membership in a particular social group or political opinion; and is unable or unwilling to avail himself/herself of the protection of that country, or to return there, for fear of persecution.  Upon receiving an asylum seeker's application, the Russian Federal Migration Service ("FMS") determines whether the asylum seeker meets the legislative definition of a "refugee" and should be granted asylum.

Well-Founded Fear: Well-Founded Fear is a 2000 documentary film from directors Shari Robertson and Michael Camerini.  The film takes its title from the formal definition of a refugee under the UN Convention Relating to the Status of Refugees, as a person who deserves protection, "owing to a "well-founded fear" of persecution for reasons of race, religion, nationality, membership of a particular social group, or political opinion.”  The film analyzes the US asylum process by following several asylum applicants and asylum officers through actual INS interviews.

Asylum seeker: An asylum seeker (also rarely called an asylee) is a person who flees his or her home country, 'spontaneously' enters another country and applies for asylum, i.e. the right to international protection, in this other country.  An asylum seeker may be a refugee, a displaced person or a migrant, such as an economic migrant.  A person becomes an asylum seeker by making a formal application for the right to remain in another country and keeps that status until the application has been concluded.  The relevant immigration authorities of the country of asylum determine whether the asylum seeker will be granted protection and becomes an officially recognised refugee or whether asylum is refused and the person becomes an illegal immigrant who has to leave the country again and may even be deported.  The asylum seeker may be recognised as a refugee and given refugee status if the person's circumstances fall into the definition of "refugee" according to the

Refugee: A refugee, generally speaking, is a displaced person who has been forced to cross national boundaries and who cannot return home safely (for more detail see legal definition).  Such a person may be called an asylum seeker until granted refugee status by the contracting state or the UNHCR if they formally make a claim for asylum.

George Strafford: George Strafford (c.1820-13 February 1896) was an Australian artist and engraver, active from 1840 to c.1860.  Born in India, he moved to Australia in 1851.  He is best known for his engraving "View of Melbourne" (1865), which was published by De Gruchy and Leigh.  Under Thomas Ham he contributed to the "Australian Illustrated Magazine".  Strafford suffered from mental illness and was committed to Carlton Asylum, Kew Asylum and Yarra Bend Asylum.  He continued to draw at Yarra Bend, and became known as 'the mad artist'.  He died at Beechworth Asylum in Victoria.

Patrick Marber: Patrick Albert Crispin Marber (born 19 September 1964) is an English comedian, playwright, director, puppeteer, actor, and screenwriter.

Credible fear: Credible fear is a concept in United States asylum law whereby a person who demonstrates that he or she has a credible fear of returning to his or her home country cannot be subject to deportation from the United States until the person's asylum case is processed.

Supporting paragraphs: Asylum (2005 film) Patrick Marber
Answer: 19 September 1964