Title: The Ghost Writer (film)
Content: Ewan McGregor as the unnamed ghostwriter. ; Pierce Brosnan as Adam Peter Benet Lang, a former British Prime Minister. ; Olivia Williams as Ruth Lang, Lang's wife. ; Kim Cattrall as Amelia Bly, Lang's personal assistant. ; Timothy Hutton as Sidney Kroll, Lang's American lawyer. ; Tom Wilkinson as Paul Emmett, a professor at Harvard Law School. ; Jon Bernthal as Rick Ricardelli, the ghostwriter's agent. ; James Belushi as John Maddox, Rhinehart's New York executive. ; Robert Pugh as Richard Rycart, UN Envoy and former British foreign secretary. ; Tim Preece as Roy Quigley, managing director of Rhinehart's London business. ; David Rintoul as The Stranger, a grieving father who lost his son during the War in Afghanistan. ; Eli Wallach as The Old Man at Martha's Vineyard. 
Title: List of accolades received by The Ghost Writer
Content:  The Ghost Writer (released as The Ghost in the United Kingdom and Ireland) is a 2010 French-German-British political thriller film directed by Roman Polanski. It is based on the novel The Ghost written by Robert Harris, who co-wrote the screenplay with Polanski.
Title: The Ghost Writer (film)
Content:  The Ghost Writer (released as The Ghost in the United Kingdom and Ireland) is a 2010 neo-noir political thriller film directed by Roman Polanski. The film is an adaptation of a 2007 Robert Harris novel, The Ghost, with the screenplay written by Polanski and Harris. It stars Ewan McGregor, Pierce Brosnan, Kim Cattrall, and Olivia Williams. The film was a critical and commercial success and won numerous cinematic awards including Best Director for Polanski at the 60th Berlin International Film Festival and also at the 23rd European Film Awards in 2010.
Title: The Ghost and the Guest
Content:  The Ghost and the Guest is based on an original story by Milt Gross. The screenplay is the first film script by Morey Amsterdam, who previously wrote lyrics for the 1936 film With Love and Kisses. The film was produced by Alexander-Stern Productions Inc., with Leon Fromkess credited as production supervisor.
Title: The Ghost (novel)
Content:  The Ghost is a 2007 contemporary political thriller by the best-selling English novelist and journalist Robert Harris. In 2010, the novel was adapted into a film, The Ghost Writer, directed by Roman Polanski and starring Pierce Brosnan, for which Polanski and Harris co-wrote the screenplay.
Title: List of Ghostwriter episodes
Content:   Ghostwriter is an American children's television series created by Liz Nelson and produced by the Children's Television Workshop (now known as Sesame Workshop) and BBC One. It aired on PBS from October 4, 1992, to February 12, 1995. The series revolves around a close-knit circle of friends from Brooklyn who solve neighborhood crimes and mysteries as a team of young detectives with the help of an invisible ghost. The ghost can communicate with the kids only by manipulating whatever text and letters he can find and using them to form words and sentences. The series was filmed on location in Fort Greene, Brooklyn.
Title: The Ghost Writer (film)
Content:  Polanski had originally teamed with Robert Harris for a film of Harris's novel Pompeii, but the project was cancelled because of the looming actors' strike that autumn. Polanski and Harris then turned to Harris' current best seller, The Ghost. They co-wrote a script and in November 2007, just after the book's release, Polanski announced filming for autumn 2008. In June 2008, Nicolas Cage, Pierce Brosnan, Tilda Swinton, and Kim Cattrall were announced as the stars. Production was then postponed by a number of months, with Ewan McGregor and Olivia Williams replacing Cage and Swinton, respectively, as a result.  The film finally began production in February 2009 in Germany, 
Title: Ghost (2019 film)
Content:  Ghost is a 2019 Indian horror thriller film written and directed by Vikram Bhatt and produced by Vashu Bhagnani Production. The film bankrolled by Loneranger Productions, features Sanaya Irani and Shivam Bhaargava in the lead roles. The story of the film follows Karan Khanna (played by Bhaargava), a politician of Indian origin in the United Kingdom, who is accused of killing his wife. He tells his lawyer that a spirit committed the murder and should be tried. Principal photography commenced in November 2018 in London. It was released on 18 October 2019.
Title: Ghostwriter (1992 TV series)
Content:  Ghostwriter is an American children's mystery television series created by Liz Nealon and produced by the Children's Television Workshop and BBC Television. It began airing on PBS on October 4, 1992, and the final episode aired on February 12, 1995. The series revolves around a group of friends from Brooklyn who solve neighborhood crimes and mysteries as a team of youth detectives with the help of a ghost named Ghostwriter. Ghostwriter can communicate with children only by manipulating whatever text and letters he can find and using them to form words and sentences. The series was filmed on location in Fort Greene, Brooklyn.
Title: Ghostwriter (2019 TV series)
Content:  On September 10, 2019, it was announced that Apple had picked up the revival of the 1992 series Ghostwriter. The series was written and directed by Luke Matheny, and is executive produced by J.J. Johnson, Andrew Orenstein, and Christin Simms.

Question: Who was the screenwriter for Ghost?
Answer: Hossein Shahabi.