Mahler (film)
Mahler is a 1974 biographical film based on the life of Austro- Bohemian composer Gustav Mahler.
It was written and directed by Ken Russell for Goodtimes Enterprises, and starred Robert Powell as Gustav Mahler and Georgina Hale as Alma Mahler.
The film was entered into the 1974 Cannes Film Festival, where it won the Technical Grand Prize.
Ken Russell
Henry Kenneth Alfred Russell (3 July 1927 – 27 November 2011) was a British film director, known for his pioneering work in television and film and for his flamboyant and controversial style.
His films in the main were liberal adaptations of existing texts, or biographies, notably of composers of the Romantic era.
Russell began directing for the BBC, where he made creative adaptations of composers' lives which were unusual for the time.
He also directed many feature films independently and for studios.
He is best known for his Oscar-winning film "Women in Love" (1969), "The Devils" (1971), The Who's "Tommy" (1975), and the science fiction film "Altered States" (1980).
Russell also directed several films based on the lives of classical music composers, such as Elgar, Delius, Tchaikovsky, Mahler, and Liszt.
Film critic Mark Kermode, speaking in 2006, and attempting to sum up the director's achievement, called Russell, "somebody who proved that British cinema didn't have to be about kitchen-sink realism—it could be every bit as flamboyant as Fellini.
Later in his life he turned to making low-budget experimental films such as "Lion's Mouth" and "Revenge of the Elephant Man", and they are as edgy and 'out there' as ever".
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Clio Barnard
Clio Barnard is a British director of documentary and feature films.
She won widespread critical acclaim and multiple awards for her debut," The Arbor", an experimental documentary about Bradford playwright Andrea Dunbar.
In 2013 she was hailed as a significant new voice in British cinema for her film" The Selfish Giant", which premiered in the Director's Fortnight section of the Cannes film festival.
Hanro Smitsman
Hanro Smitsman, born in 1967 in Breda( Netherlands), is a writer and director of film and television.
Peter Levin
Peter Levin is an American director of film, television and theatre.
Howard W. Koch
Howard Winchel Koch( April 11, 1916 – February 16, 2001) was an American producer and director of film and television.
Brian Johnson (special effects artist)
Brian Johnson( born 1939 or 1940) is a British designer and director of film and television special effects.
Rachel Feldman
Rachel Feldman( born August 22, 1954) is an American director of film and television and screenwriter of television films.
Dark River (2017 film)
Dark River is a 2017 British drama film written and directed by Clio Barnard, and starring Ruth Wilson, Mark Stanley, and Sean Bean.
The film is loosely based on Rose Tremain's novel" Trespass".
Originally Barnard intended the film to be a straightforward adaptation of the novel, which was set in southern France and involved two sets of elderly siblings involved in a property dispute.
Encouraged by the financiers to make the story her own, Barnard changed the location of the film to Yorkshire, and instead focused on a woman who returns to the home she fled 15 years earlier in order to claim the tenancy of her father's farm, who then becomes involved in a dispute with her brother.
It screened in the Platform section at the 2017 Toronto International Film Festival and was released in the United Kingdom on 23 February 2018.

Question: Are director of film Dark River (2017 Film) and director of film Mahler (Film) from the same country?
Answer: yes