and his fight in the Irish courts (December 1955) to be reunited with his children was predominantly filmed at Castleknock and featured as the orphanage. The film stars Sophie Vavasseur in the title role, Pierce Brosnan as her father and Aidan Quinn, Julianna Margulies, Stephen Rea and Alan Bates as supporters to Doyle's case. The film had a limited release in the United States, starting on 13 December 2002 and was later followed by the United Kingdom release on 21 March 2003. Presidents of Castleknock College Philip Dowley (1835–1864) Thomas MacNamara (1864–1866) Peter Duff (1867–1873) Malachy O'Callaghan (1873–1885) James Moore (1885–1892) Thomas Hardy (1892–1895) Joseph Geoghegan (1895–1902) M.P. Brosnahan (1902–1907) Paul Cullen (1907–1915) M.J. O'Reilly (1915) John Shanahan (1915–1916) E.P. Meehan (1916–19) Vincent McCarthy (1919–1926) Henry O'Connor (1926–32) T.K. Donovan (1932–1938) W.J. Meagher (1938–1944) William Sullivan (1944–1950) D.F. Cregan (1950–1957) M.J. Walsh (1957–1963) Patrick O'Donoghue (1963–1972) Matthew Barry (1972–1980) Henry Slowey (1980–1985) Kevin O'Shea (1985–1999) Simon Clyne (1999–2005) Peter J. Slevin (2005–2018) Paschal Scallon (2018–) Past Pupils' Union The Castleknock Union was founded in the year 1896 by the Lord Chief Justice of England, Charles Russell, Baron Russell of Killowen with the aim of reconnecting all past pupils of the college. The college hosts many networking events for past pupils throughout the year that include the annual business lunch, the gold medal debate, the union debate and Union Day. Many notable figures have been guest speakers at the annual Business lunch such as the Irish rugby head coach Joe Schmidt and the Taoiseach Leo Varadkar. In 2016 the Past Pupils' Union launched the Union Scholarship Fund to assist boys who otherwise could not afford to attain an education at Castleknock College due to socioeconomic barriers. Notable past pupils Former pupils of Castleknock College are known as Pastmen. The school's alumni and faculty include two Taoisigh, one President of Ireland, one Ceann Comhairle, several cabinet ministers, two Supreme Court Justices, five Attorneys General, one Lord Chief Justice of England and Wales, three archbishops, one founding member of Fianna Fáil, the founder of the Green Party of Ireland, one Lord Mayor of Dublin, one Victoria Cross holder, 26 Irish International rugby players and numerous notable figures in the world of arts, academia and business. Academia, science and medicine Simon Clyne, Vincentian, president of St Patrick's, Drumcondra, Castleknock College, and chaplain to the President of Ireland Robert Farnan, member of Seanad Éireann, gynaecologist,