Title: The Callback Queen
Content:  The Callback Queen is a 2013 British romantic comedy independent film by Irish director Graham Cantwell, starring a largely British and Irish cast: Amy-Joyce Hastings, Mark Killeen, Seán T. O'Meallaigh, Ger Ryan, Vicki Michelle and Eoin Macken.
Title: The Callback Queen
Content:  The film was shot on location in London in the boroughs of Richmond Upon Thames, Camden and Central London at the British Film Institute, as well as the "Prince of Chaos" sequences which were filmed on location in Snowdonia in Wales. The "Prince of Chaos" film within a film, was loosely inspired by the HBO Game of Thrones television series, and indeed the author character of Horatio King featured within "The Callback Queen" was based on George R. R. Martin, creator of A Song of Ice and Fire, as explained in Martin's livejournal blog. The soundtrack includes "London" by 21 Demands (a former incarnation of Kodaline), three tracks by award-winning Irish band The Fallen Drakes, and "Gold" by The Minutes. The original score was composed by twice Emmy nominated composer Joseph Conlan.
Title: The Callback Queen
Content:  Kate Loughlin is a vivacious young actress struggling to get her big break in the London film industry. When she lands an audition for the lead role in a massive movie franchise based on the 'Prince of Chaos' novels by legendary author Horatio King, she goes after the opportunity with all guns blazing. However a sleazy agent trying to pimp her to the director Vincent Catalano, pushes her to the other extreme. Determined to prove her strict professionalism, she starts second guessing Vincent's interest in her. Dáithí Carroll is an earnest young filmmaker studying in London. Chosen to direct one of his college's graduation films, he needs a crew. Enter Joanne Webber, a hard-nosed Londoner with a 
Title: The Callback Queen
Content:  for role-play and her eye on this vulnerable Irishman. Together they recruit a motley crew for their film, and Dáithí enlists Kate to star. A restless Vincent inserts himself onto their set through his friend and casting director Deborah Whitton, who is tutor to the young filmmakers. Kate's resolve to maintain her integrity is put to the test as she finds herself drawn to Vincent when they are repeatedly thrown together. Add to the mix rival starlet Luci, a wannabe WAG with designs on both Kate's coveted role in 'Prince of Chaos', and on Vincent! In the cut-throat arena of show-business, Kate stands to learn that her profession is personal, and sometimes friction can create a spark.
Title: Queen of the Damned
Content:  a doomed project. In spite of their showing no interest in me as the screen writer, they have not been able to find one themselves for this bizarre idea of THE QUEEN OF THE DAMNED. I'm not too surprised. I think any respectable script writer would be crazy to tackle that novel without having fully developed the background story of Lestat. Anyway, that is where it is." During 1999, the script was developed by TV screenwriter Scott Abbott and Australian writer/director Michael Petroni. Another Australian, Michael Rymer, was confirmed to direct. Rymer suggested the film be shot in his home city of Melbourne, which would save considerably 
Title: The Callback
Content:  As Ivy Lynn (Megan Hilty) and Karen Cartwright (Katharine McPhee) both attempt to please Derek Wills (Jack Davenport) in order to win the role of Marilyn, Julia Houston (Debra Messing) and her husband Frank (Brian d'Arcy James) become frustrated by the process of their international adoption and Eileen's (Anjelica Huston) acrimonious divorce complicates her attempt to finance the musical. We are shown that Karen in callbacks is very slow to pick up the dance routines, and has problems with acting (Derek tells her she isn't giving him "anything," Marilyn or otherwise). In the end, Ivy wins the role of Marilyn after impressing Derek with her eloquent and vulnerable scenework in callbacks. Derek is moved by Ivy's work to make an advance, and the two become involved.
Title: Queen of Carthage
Content:  Queen of Carthage is a 2014 New Zealand thriller drama film starring Shiloh Fernandez. In addition to acting in the film, Fernandez served as screenwriter and producer.
Title: Queen (2014 film)
Content:  Queen is a 2014 Indian Hindi-language comedy-drama film directed by Vikas Bahl and produced by Anurag Kashyap, Vikramaditya Motwane, and Madhu Mantena. The film stars Kangana Ranaut in the lead role, with Lisa Haydon and Rajkummar Rao playing supporting roles. The film follows the story of Rani Mehra, a diffident Punjabi girl from New Delhi who embarks on her honeymoon to Paris and Amsterdam by herself after her fiancé calls off their wedding. Bahl co-wrote the script of Queen with Chaitally Parmar and Parveez Shaikh. Anvita Dutt Guptan wrote the dialogues for the film. Ranaut, who was encouraged by Bahl to improvise her lines during filming, is recognized as an additional dialogue writer. Amit Trivedi provided the musical score 
Title: The Queen (2006 film)
Content:  The screenplay was written by Peter Morgan. It was produced by Pathé Pictures and Granada Productions (ITV Productions). Stephen Frears had a clause in his contract from The Deal that allowed him to direct any follow-ups or sequels, and he was officially announced as director in September 2003. The film was shot on location in the United Kingdom, in England in London, Halton House and Waddesdon Manor, in Buckinghamshire, Brocket Hall in Hertfordshire and in Scotland at Balmoral Castle, Castle Fraser and Cluny Castle in Aberdeenshire, and Blairquhan Castle and Culzean Castle in South Ayrshire.
Title: Queen (2014 film)
Content:  her "settled", she never plans anything by herself, unless as in this case of Rani, marriage plans go awry. Thus the script was developed so that in the "first half, Rani gets over the guy, and in the second, she gets over herself." Bahl wrote the script keeping Ranaut in mind, however it was Anurag Basu who connected him with her and helped cast her in the film. After her audition, actress Lisa Haydon, who played an Indo-French hotel staff member, Vijaylaksmi, practiced French for a month. Other actors Mish Boyko (Alexander) and Jeffery Ho (Taka) were cast after auditions in London, while Joseph Guitobh (Tim), who played Rani's third roommate, was spotted singing on a street and was asked whether he'd be interested in working in Hindi film, though he couldn't speak English.

Question: Who was the screenwriter for The Callback Queen?
Answer: Graham Cantwell.