Question: When was the film adaptation of Stephen Leather's fourth novel scheduled to be released in China?

Context paragraphs:
Ben Sanders (author): Ben Sanders (born 1989) is a bestselling crime writer from Auckland, New Zealand.  His work has received critical acclaim, been shortlisted for the Ngaio Marsh Award, and his upcoming fourth novel, "American Blood", has been optioned for film adaptation by Warner Bros, with four-time Oscar nominee Bradley Cooper slated to play the lead role.

Backlash (Star Wars novel): Backlash is a novel by Aaron Allston that was originally scheduled for release on January 26, 2010 but was moved back to March 9, 2010 to give the author more time to recover from his 2009 heart attack.  It is the fourth novel in the "Fate of the Jedi" series and published as a hardcover.  It was published in paperback in February 2011.

Birdsong (novel): Birdsong is a 1993 war novel and family saga by the English author Sebastian Faulks.  It is Faulks' fourth novel.  The plot follows two main characters living at different times: the first is Stephen Wraysford, a British soldier on the front line in Amiens during the First World War, and the second is his granddaughter, Elizabeth Benson, whose 1970s plotline follows her attempts to recover an understanding of Stephen's experience of the war.

A Connecticut Yankee (film): A Connecticut Yankee is a 1931 American Pre-Code film adaptation of Mark Twain's 1889 novel, "A Connecticut Yankee in King Arthur's Court".  It was directed by David Butler to a script by William M. Conselman, Owen Davis, and Jack Moffitt.  It was produced by Fox Film Corporation (later 20th Century Fox), who had earlier produced the 1921 silent adaptation of the novel, "A Connecticut Yankee in King Arthur's Court".  "A Connecticut Yankee" is the first sound film adaptation of Twain's novel.

The Stretch (novel): The Stretch is a thriller written by Stephen Leather, published in 2000.  The novel, his twelfth, was based on the script for his television miniseries of the same name.

Hard Landing (novel): Hard Landing is a 2004 thriller novel by British author Stephen Leather.  Published in 2004 by Hodder & Stoughton, it is the first book in the Dan ‘Spider’ Shepherd series.  "Hard Landing" is an international bestseller and is available in ebook and paperback.

Crouching Tiger, Hidden Dragon: Crouching Tiger, Hidden Dragon () is a 2000 wuxia film.  The film is a Chinese, Taiwanese, Hong Kong and American venture produced by Asian Union Film & Entertainment, China Film Co-Productions Corporation, Columbia Pictures Film Production Asia, Edko Films, Good Machine International, and Zoom Hunt Productions.  Directed by Ang Lee and featuring an international cast of Chinese actors, including Chow Yun-fat, Michelle Yeoh, Zhang Ziyi and Chang Chen, the film was released in 2000.  It was based on the fourth novel, of the same name, in the wuxia book series "Crane Iron Pentalogy", by Chinese novelist Wang Dulu.  The martial arts and fighting action sequences were choreographed by Yuen Wo Ping, who later directed the English-language sequel "", released in 2016.

The Chinaman (Stephen Leather novel): The Chinaman is a thriller novel written by Stephen Leather, first published in 1992.  This is his fourth novel and was adapted into a film, starring Jackie Chan, titled "The Foreigner", set to be released in 2017.

The Foreigner (2017 film): The Foreigner is an upcoming English-language action thriller film film directed by Martin Campbell and written by David Marconi, based on the 1992 novel "The Chinaman" by Stephen Leather.  The British-Chinese co-production stars Jackie Chan, Pierce Brosnan, Charlie Murphy, Michael McElhatton, Orla Brady, Liu Tao and Katie Leung.  It is scheduled for release in China on 30 September 2017 and in the United States on 13 October 2017.

Susan Stinson: Susan Stinson is an American writer.  She has published three novels and a collection of poetry to date, with her fourth novel scheduled for publication in fall 2013.  Born in Texas and raised in Colorado, she currently lives in Northampton, Massachusetts, where she is writer in residence at the Forbes Library.

Supporting paragraphs: The Foreigner (2017 film) The Chinaman (Stephen Leather novel)
Answer: 30 September 2017