Are Kanchi Wichmann and Nicolas Winding Refn both British filmmakers?
no
Nicolas Winding Refn
Nicolas Winding Refn (] ; born 29 September 1970) is a Danish film director, screenwriter and producer.
 He is known for directing the crime dramas "Bleeder" (1999) and the "Pusher" films (1996-2005), the fictionalised biographical film "Bronson" (2008), the dramatic adventure film "Valhalla Rising" (2009), the neo-noir crime film "Drive" (2011), the thriller "Only God Forgives" (2013), and the psychological horror film "The Neon Demon" (2016).
 In 2008, Refn co-founded the Copenhagen-based production company Space Rocket Nation.
Kanchi Wichmann
Kanchi Wichmann (born 1974) is a BAFTA-nominated British filmmaker, best known for the lesbian feature "Break My Fall" (2011) which was listed as one of ten great lesbian films to watch by the British Film Institute.
Fear X
Fear X is a 2003 psychological thriller film directed by Nicolas Winding Refn.
 The first film to be produced from one of Hubert Selby Jr.'s original screenplays, its eventual box-office failure would force Refn's film company "Jang Go Star" into bankruptcy.
 Refn's financial recovery was documented in the 2006 documentary The Gambler. The Neon Demon
The Neon Demon is a 2016 psychological horror film directed by Nicolas Winding Refn, co-written by Mary Laws, Polly Stenham, and Refn, and starring Elle Fanning.
 The plot follows an aspiring model in Los Angeles whose beauty and youth generate intense fascination and jealousy within the industry.
 Supporting roles are played by Karl Glusman, Jena Malone, Bella Heathcote, Abbey Lee, Desmond Harrington, Christina Hendricks, and Keanu Reeves. Brock Norman Brock
Brock Norman Brock is a British screenwriter and playwright.
 He co-wrote the script for Nicolas Winding Refn's movie "Bronson".
 Early in his career, his play "Here is Monster" was nominated for the Verity Bargate Award.
 The premiere production in 1990-91 was staged by the Show of Strength Theatre Company and directed by Mark Ravenhill. Space Rocket Nation
Space Rocket Nation is a Danish film production company founded in 2008 by producer Lene Børglum and director Nicolas Winding Refn after their collaboration on Refn's film "Valhalla Rising". Valhalla Rising (film)
Valhalla Rising is a 2009 English-language Danish adventure drama film directed by Nicolas Winding Refn, co-written by Refn and Roy Jacobsen, and starring Mads Mikkelsen.
 The film takes place around the year 1096 AD and follows a Norse warrior named One-Eye and a boy as they travel with a band of Christian Crusaders by ship in the hopes of finding the Holy Land.
 Instead, they find themselves in an unknown land (actually North America) where they are assailed by unseen forces and dark visions. Pusher (2012 film)
Pusher is a 2012 British crime thriller film directed by Luis Prieto.
 It is an English-language remake of Nicolas Winding Refn's 1996 film of the same name.
 The film stars Richard Coyle, Agyness Deyn, Bronson Webb, and Paul Kaye. Pusher (1996 film)
Pusher is a 1996 Danish crime drama co-written and directed by Nicolas Winding Refn, in his film debut.
 A commercial success considered highly influential in Danish film history, it helped launching Winding Refn's and actor Mads Mikkelsen's careers. Bleeder (film)
Bleeder is a 1999 Danish crime drama film written, produced, and directed by Nicolas Winding Refn.
 The film was successful in Denmark, but did not live up to the success of Refn's previous film "Pusher".