Question: Are Alexander Kluge and Sidney Salkow of the same nationality?

Documents:
source: Alexander Kluge
text: Alexander Kluge Alexander Kluge (born 14 February 1932) is a German author, philosopher, academic and film director.

source: Sidney Salkow
text: Sidney Salkow Sidney Salkow (June 16, 1911 – October 18, 2000) was an American film director (more than 50 motion pictures), screenwriter, and television director.

source: Anita G.
text: Anita G. "Anita G." is a short story written by Alexander Kluge in 1962, which was adapted into the film "Yesterday Girl" in 1966.

source: The Great Sioux Massacre
text: The Great Sioux Massacre The Great Sioux Massacre is a 1965 Revisionist Western film directed by Sidney Salkow in CinemaScope using extensive action sequences from Salkow's 1954 "Sitting Bull". In a greatly fictionalised form, it depicts events leading up to the Battle of the Little Bighorn and Custer's Last Stand.

source: The Lone Wolf Keeps a Date
text: The Lone Wolf Keeps a Date The Lone Wolf Keeps a Date (1941) is the sixth Lone Wolf film produced by Columbia Pictures. It features Warren William in his fourth appearance as the title character Lone Wolf, and Edward Gargan, Lester Matthews and Don Beddoe as the film's antagonists. The film was directed by Sidney Salkow and written by Salkow and Earl Felton.

source: Exclusive (film)
text: Exclusive (film) Exclusive is a 1937 American drama film directed by Alexander Hall and written by Jack Moffitt, Sidney Salkow and Rian James. The film stars Fred MacMurray, Frances Farmer, Charlie Ruggles, Lloyd Nolan, Fay Holden and Ralph Morgan. The film was released on August 6, 1937, by Paramount Pictures.

source: Artists Under the Big Top: Perplexed
text: Artists Under the Big Top: Perplexed Artists in the Big Top: Perplexed (German: Die Artisten in der Zirkuskuppel: Ratlos ) is a 1968 West German film written and directed by Alexander Kluge. The film is made in a collage style, featuring newsreels and quotations from philosophers alongside the story of a failing circus whose owner, Leni (Hannelore Hoger), must decide whether her dream of a new kind of circus is too optimistic. The film is a symbolic representation of Kluge's own frustrations in trying to help stimulate the New German Cinema movement.

source: Yesterday Girl
text: Yesterday Girl Yesterday Girl (German: Abschied von gestern, "Farewell to Yesterday") is a 1966 New German Cinema film directed and written by Alexander Kluge. The film is based on the short story "Anita G." (1962), which is also by Alexander Kluge. The film tells the story of Anita G., a young East German migrant to West Germany and her struggle to adjust to her new life.

source: Robbers' Roost (film)
text: Robbers' Roost (film) Robbers' Roost is a 1955 American Western film directed by Sidney Salkow and written by John O'Dea, Sidney Salkow and Maurice Geraghty. The film stars George Montgomery, Richard Boone, Sylvia Findley, Bruce Bennett, Peter Graves and Tony Romano. It is based on the novel "Robbers' Roost" by Zane Grey. The film was released on May 30, 1955, by United Artists.

source: The Lone Wolf Takes a Chance
text: The Lone Wolf Takes a Chance The Lone Wolf Takes a Chance is a 1941 American drama film directed by Sidney Salkow, which stars Warren William, June Storey, and Henry Wilcoxon. Salkow also wrote the original screenplay, along with Earl Felton, and the film was released on March 6, 1941. It is the sixth Lone Wolf film produced by Columbia Pictures, and the fourth appearance of William as the title character Lone Wolf.

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Answer: no