Question: The Riot Club is a 2014 British drama film directed by Lone Scherfig and written by Laura Wade, the Riot Club was often described as a thinly veiled version of which exclusive but unofficial all-male students' dining club based in Oxford, called?

Context paragraphs:
Posh (play): Posh is a play by the British playwright Laura Wade.  It was first staged at the Royal Court Theatre downstairs in 2010.  The play concerns an Oxford student dining club called "The Riot Club", a fictionalised version of the Bullingdon Club.  The first production, produced during the British General Election, received favourable reviews.

The Riot Club: The Riot Club is a 2014 British drama film directed by Lone Scherfig and written by Laura Wade, based on Wade's 2010 play "Posh".  The film stars Max Irons, Sam Claflin and Douglas Booth.  It is set among the Riot Club, a fictional all-male, exclusive dining club at Oxford University.  When the play "Posh" premiered, the Riot Club was often described as a thinly veiled version of the real-life Bullingdon Club, or High Trees Society, although according to Wade it is entirely fictitious.

Karen Olsson: Karen Olsson (born 1972) is an American novelist and journalist.  Her second novel, "All the Houses," will be published by Farrar, Straus and Giroux in 2015.  Set in Washington, D.C., it is narrated by the middle daughter of a family that has come undone in the wake of the Iran-contra scandal.  Her first novel, "Waterloo" (FSG 2005), is set in a thinly veiled version of Austin, Texas.  The book follows a down-on-his-motivation reporter at an alternative weekly paper as he tries to get over a failed relationship and investigate some irregular goings-on at the state capitol.  Writing in the New York Times Book Review, Mark Costello described "Waterloo" as "a melancholy comedy of Texas politics [written] with great wit and assurance."

Chatham Dining Club: The Chatham Dining Club is a general interest Dining club based in London, United Kingdom.  The Club was founded in 1910 by Captain Rupert Ommanney and Captain Guy Dawnay whilst they were students at the British Army Staff College in Camberley.

Hard, Fast and Beautiful: Hard, Fast and Beautiful is a 1951 American drama film directed by Ida Lupino and starring Claire Trevor, loosely based on the 1930 novel "American Girl" by sports fiction author John R. Tunis, which itself was an unflattering and thinly veiled fictionalization of tennis star Helen Wills Moody.

Bullingdon Club: The Bullingdon Club is an exclusive but unofficial all-male students' dining club based in Oxford.  It is noted for its wealthy members, grand banquets, boisterous rituals and destructive behaviour, such as the vandalising ("trashing") of restaurants and students' rooms.

One Day (2011 film): One Day is a 2011 British-American romantic drama film directed by Lone Scherfig, and starring Anne Hathaway and Jim Sturgess.  Focus Features released the film theatrically in August 2011.  It was adapted by David Nicholls from his eponymous 2009 novel.

List of accolades received by An Education: "An Education" is a 2009 coming-of-age drama film directed by Lone Scherfig and written by Nick Hornby.  It is based on the memoirs of the same name by British journalist Lynn Barber.  The film premiered on 18 January 2009 at the Sundance Film Festival and screened at the Toronto International Film Festival on 10 September 2009.  The film then showed at the Mill Valley Film Festival before being released in the United Kingdom by Sony Pictures Classics on 30 October 2009, and going into wide release in the United States on 5 February 2010.  "An Education" earned over $26 million in its combined total gross at the box office.

An Education: An Education is a 2009 coming-of-age drama film based on a memoir of the same name by British journalist Lynn Barber.  The film was directed by Lone Scherfig from a screenplay by Nick Hornby.  It stars Carey Mulligan as Jenny, a bright schoolgirl, and Peter Sarsgaard as David, the charming con man who seduces her.  The film was nominated for three Academy Awards in 2010: Best Picture and Writing (Adapted Screenplay) for Nick Hornby, and Best Actress for Carey Mulligan.

The Man Who Loved Redheads: The Man Who Loved Redheads is a 1955 British comedy film directed by Harold French and starring Moira Shearer, John Justin and Roland Culver.  The film is based on the play "Who is Sylvia? " (1950) by Terence Rattigan, which is reputedly a thinly veiled account of the author's philandering father.  The film follows the play fairly closely, its main difference being the turning of Sylvia into a redhead.

Supporting paragraphs: The Riot Club Bullingdon Club
Answer: Bullingdon Club