Question: Are Roy Rowland and Volker Schlöndorff the same nationality?

Context articles: Margarethe von Trotta
Palmetto (film)
New German Cinema
The Ogre (1996 film)
Volker Schlöndorff
The Lost Honour of Katharina Blum (film)
Marek Brodzki
A Degree of Murder
Roy Rowland (film director)
The Michael Nyman Songbook

Margarethe von Trotta (born 21 February 1942) is a German film director who has been referred to as a "leading force" of the New German Cinema movement.
 Von Trotta boasts an impressive body of work that has won her awards all over the world in the last forty years.
 She was married to and collaborated with director Volker Schlöndorff.
 Although they made a successful team, von Trotta felt she was seen as secondary to Schlöndorff.
 Subsequently, she established a solo career for herself and became "Germany’s foremost female film director, who has offered the most sustained and successful female variant of "Autorenkino" in postwar German film history."
 Certain aspects of von Trotta’s work have been compared to Ingmar Bergman’s features from the 1960s and 1970s.
 She says that it was thanks to Bergman's films that she "‘fell in love’ with the medium and its possibilities for representing inner psychic worlds."
Palmetto is a 1998 neo-noir film directed by Volker Schlöndorff (as "Volker Schlondorff") with a screenplay by E. Max Frye.
 It is based on the novel "Just Another Sucker" by James Hadley Chase.
 The film stars Woody Harrelson, Elisabeth Shue and Gina Gershon.
New German Cinema (German: "Neuer Deutscher Film" ) is a period in German cinema which lasted from the late 1960s into the 1980s.
 It saw the emergence of a new generation of directors.
 Working with low budgets, and influenced by the French New Wave, such directors as Rainer Werner Fassbinder, Werner Herzog, Alexander Kluge, Harun Farocki, Volker Schlöndorff, Helma Sanders-Brahms, Hans-Jürgen Syberberg, Margarethe von Trotta and Wim Wenders made names for themselves and produced a number of 'small' motion pictures that caught the attention of art house audiences, and enabled these directors (particularly Wenders and Schlöndorff) to create better-financed productions which were backed by the big US studios.
 However, most of the films were commercial failures and, by 1977, 80% of a budget for a typical German film was ensured by a subsidy.
The Ogre (German: Der Unhold ) is a 1996 French-German drama film directed by Volker Schlöndorff and starring John Malkovich, Gottfried John, Marianne Sägebrecht, Volker Spengler, Heino Ferch, Dieter Laser and Armin Mueller-Stahl.
 It was written by Jean-Claude Carrière and Schlöndorff, based on the novel "The Erl-King" by Michel Tournier.
 The story follows a simple man who recruits children to be Nazis in the belief that he is protecting them.
Volker Schlöndorff (born 31 March 1939) is a German filmmaker who has worked in Germany, France and the United States.
 He was a prominent member of the New German Cinema of the late 1960s and early 1970s, which also included Werner Herzog, Wim Wenders, Margarethe von Trotta and Rainer Werner Fassbinder.
The Lost Honour of Katharina Blum, or: How violence develops and where it can lead (German original title: "Die verlorene Ehre der Katharina Blum oder: Wie Gewalt entstehen und wohin sie führen kann") is a 1975 film adaptation of the novel of the same name by Heinrich Böll, written for the screen by Volker Schlöndorff and Margarethe von Trotta.
 Schlöndorff and von Trotta wrote the script with an emphasis on the vindictive and harsh treatment of an innocent woman by the public, the police and the media.
Marek Brodzki (born 25 December 1960) is a Polish film director and television director.
 He directed the film and series versions of "Wiedźmin" aka "The Hexer" and the series "Miasteczko".
 He has worked as First Assistant Director with top Polish directors Andrzej Wajda and Krzysztof Zanussi and has specialized as a Polish First Assistant Director and Second Unit Director on international productions made in Poland notably including Steven Spielberg's "Schindler's List" and has a long working relationship with German director Volker Schlöndorff.
 October 2015 he was awarded the Bronze Medal for Merit to Culture – Gloria Artis.
A Degree of Murder (German: "Mord und Totschlag" , French: "Vivre à tout prix" ) is a 1967 West German film, starring Anita Pallenberg and directed by Volker Schlöndorff.
 The film is mainly known because of the soundtrack composed by Brian Jones (founder of the Rolling Stones), Pallenberg's boyfriend at the time.
Roy Rowland (December 31, 1910 – June 29, 1995) was an American film director.
 The New York-born director helmed a number of films in the 1950s and 1960s including "Our Vines Have Tender Grapes", "Meet Me in Las Vegas", "Rogue Cop", "The 5000 Fingers of Doctor T" and "The Girl Hunters".
 Rowland married Ruth Cummings, the niece of Louis B. Mayer and sister of Jack Cummings (MGM producer/director).
 They had one son, Steve Rowland, born in 1932, who later became a music producer in the UK, and has recently published his memoir "Hollywood Heat".
The Michael Nyman Songbook is a collection of art songs by Michael Nyman based on texts by Paul Celan, Wolfgang Amadeus Mozart, William Shakespeare and Arthur Rimbaud.
 It was recorded as an album with Ute Lemper in 1991, and again as a concert film in 1992, under the direction of Volker Schlöndorff, again with Ute Lemper, though many of the musicians had changed.
 The songs have been recorded by others and as instrumentals, and are published by Chester Music.
 The album has been issued by both London Records and Argo Records, though the covers are the same except for the logo.