Question: Iarla Ó Lionáird sang "Casadh an tSugain" in a 2015 film based on a novel by what author?

Context paragraphs:
Cultural depictions of William III of England: William III of England has been played on screen by Bernard Lee in the 1937 film "The Black Tulip", based on the novel by Alexandre Dumas, père, Henry Daniell in the 1945 film "Captain Kidd", Olaf Hytten in the 1952 film "Against All Flags", Alan Rowe in the 1969 BBC drama series "The First Churchills", Laurence Olivier in the 1986 NBC TV mini-series "Peter the Great", Thom Hoffman in the 1992 film "Orlando", based on the novel by Virginia Woolf, Corin Redgrave in the 1995 film "England, My England", the story of the composer Henry Purcell, Jochum ten Haaf in the 2003 BBC miniseries "", Bernard Hill in the 2005 film "The League of Gentlemen's Apocalypse", Russell Pate in the 2008 BBC film "King Billy Above All", Egbert-Jan Weber in the 2015 film "Michiel de Ruyter", George Webster in "Versailles" (2015) and Carl Prekopp in the 2015 premiere of the play "Queen Anne".

Freetown (film): Freetown is a 2015 film based on a true story about Mormon missionaries in Liberia seeking to escape the Liberian Civil War to safety in Sierra Leone.

Brooklyn (film): Brooklyn is a 2015 British-Canadian-Irish romantic drama film directed by John Crowley and written by Nick Hornby, based on Colm Tóibín's 2009 novel of the same name.  The film stars Saoirse Ronan, Emory Cohen, Domhnall Gleeson, Jim Broadbent, and Julie Walters.  Set in 1951 and 1952, the film tells the story of a young Irish woman's immigration to Brooklyn, where she falls in love.  When her past catches up with her she must choose between two countries and the lives that exist within them for her.

Fifty Shades Darker (film): Fifty Shades Darker is a 2017 American erotic romantic drama film directed by James Foley and written by Niall Leonard, based on E. L. James's novel of the same name.  The second film in the "Fifty Shades" film series, it is the sequel to the 2015 film "Fifty Shades of Grey".  The film stars Dakota Johnson and Jamie Dornan as Anastasia Steele and Christian Grey, respectively, with Eric Johnson, Eloise Mumford, Bella Heathcote, Rita Ora, Luke Grimes, Victor Rasuk, Kim Basinger and Marcia Gay Harden in supporting roles.

Akrivi: Akrivi is a singer and songwriter, best known for her music contributions in series and films.  Her music has been featured on US networks Showtime Networks, CBS, A&E (TV channel) in various shows like The Good Wife, The Glades (TV series), House of Lies, The Bold and the Beautiful and also on Sony Pictures film The Night Before (2015 film).  She has released a double collection of her work in 2015, "Precious Collection Volume 1 & 2" featuring songs sang in English, Greek and Spanish.  Akrivi was born in Greece and has been residing in the United Kingdom.

Size2shoes (album): size2shoes is the début music album by Irish band size2shoes.  The album was recorded and mixed by Smalltone artist Kieran Lynch (U2, Elvis Costello, Declan O'Rourke, Iarla Ó Lionáird), and was recorded at Dromore Studios in County Tipperary in Ireland.  The album was also mastered at the Windmill Lane studios in Dublin.

Iarla Ó Lionáird: Iarla Ó Lionáird (born 18 June 1964) is an Irish singer and record producer.  He sings in the traditional sean-nós style.  He was a member of the Afro Celt Sound System and is a member of the Irish-American supergroup The Gloaming.  He has recorded several solo albums for Real World Records.  He appeared in the 2015 film "Brooklyn" singing an a cappella version of the Irish folk song "Casadh an tSugain".

Sitting by the Sea: "Sitting by the Sea" was the first promotional single taken from size2shoes' début album "size2shoes", released in the same year.  The song was written and arranged by Moley and Eoin Ó Súilleabháin and mixed by Kieran Lynch (U2, Iarla Ó Lionáird, Elvis Costello) and was produced by Bill Whelan (Riverdance, The Waterboys, Van Morrison).

The Gloaming (group): The Gloaming is a contemporary Irish music supergroup formed in Ireland in 2011 consisting of musicians Martin Hayes, Iarla Ó Lionáird, Caoimhín Ó Raghallaigh, Dennis Cahill and New York pianist/producer Thomas Bartlett aka Doveman.

Bin Roye (TV series): Bin Roye (Urdu: ‎ ; lit: Without Crying), also known as Bin Roye Ansoo, is a Pakistani romantic television serial that was first aired on 2 October 2016 in Hum TV.  "Bin Roye" is a type of film changed into drama.  It is directed by Shahzad Kashmiri and Haissam Hussain (directed initial parts), written by Farhat Ishtiaq and screenplay by Muhammad Wasi-ud-din.  "Bin Roye" is produced by Momina Duraid, under the banner MD Productions.  The series is the television adaptation of the 2015 film of the same name, which itself was based on the novel of the same name by Farhat Ishtiaq.  All the original cast of the film have reprised their roles, including the main cast of the film, Mahira Khan, Humayun Saeed and Armeena Khan with the addition of some child stars and addition of cast Adnan Malik and Saman Ansari.

Supporting paragraphs: Iarla Ó Lionáird Brooklyn (film)
Answer: Colm Tóibín