Question: Who is known by the most other names, Scott Sidney or John Dahl?

full_context: Document 1: Sidney Olcott: Sidney Olcott (September 20, 1872 – December 16, 1949) was a Canadian-born film producer, director, actor and screenwriter.
Document 2: The Black Dahlia (film): The Black Dahlia is a 2006 French-American neo-noir crime thriller film directed by Brian De Palma and written by Josh Friedman. It is drawn from the novel of the same name by James Ellroy and stars Josh Hartnett, Scarlett Johansson, Aaron Eckhart and Hilary Swank. The widely sensationalized murder of Elizabeth Short inspired both the novel and the film. The film was screened at the 63rd Venice International Film Festival on August 30, 2006, and was released in the United States on September 15, 2006. Despite its failure both critically and financially, it was nominated for Best Cinematography at the 79th Academy Awards, losing to "Pan's Labyrinth". Mia Kirshner's performance as Short was also widely praised.
Document 3: Sidney Morgan: Sidney Morgan (2 August 1874 – 11 June 1946) was an English film director, screenwriter, producer and actor. He directed 45 films between 1914 and 1937. As an actor, he appeared in the Alfred Hitchcock film "Juno and the Paycock".
Document 4: John Dahl: John Dahl (born 1956) is an American film and television director and writer, best known for his work in the neo-noir genre.
Document 5: Neo-noir: Neo-noir is a modern or contemporary motion picture rendition of "film noir". The term "film noir" (a term popularised by two French critics, namely, and Etienne Chaumeton in 1955), when translated from French to English, reads "dark movie", indicating a sense of something sinister and shadowy. The film-noir genre includes stylish Hollywood crime dramas, neo-noir being the same, but with updated themes, content, style, visual elements or media that were absent in the films of the "film noir" period from the 1940s and 1950s.
Document 6: S. Sylvan Simon: S. Sylvan Simon (March 9, 1910 – May 17, 1951) was an American stage/film director and producer.
Document 7: No Country for Old Men (film): No Country for Old Men is a 2007 American neo-western neo-noir thriller film written and directed by Joel and Ethan Coen, based on Cormac McCarthy's novel of the same name. A cat-and-mouse drama starring Tommy Lee Jones, Javier Bardem, and Josh Brolin, it follows a Texas welder and Vietnam veteran in the desert landscape of 1980 West Texas. The film revisits the themes of fate, conscience, and circumstance that the Coen brothers had explored in the films "Blood Simple" (1984) and "Fargo" (1996).
Document 8: Scott Pembroke: Scott Pembroke (September 13, 1889 – February 21, 1951) was an American director, actor and screenwriter. He directed 73 films between 1920 and 1937. He was born in San Francisco, California and died in Pasadena, California.
Document 9: Harry Edwards (director): Harry Edwards (October 11, 1887 - May 26, 1952) was a Canadian-born American film director and actor. He worked in films from the 1910s to the 1950s.
Document 10: Scott Sidney: Scott Sidney (1872 – 20 July 1928), born Harry Wilbur Siggins, was an American film director. He directed 117 films between 1913 and 1927.
Document 11: Howard M. Mitchell: Howard M. Mitchell (December 11, 1883 – October 9, 1958) was an American actor and film director. He appeared in 270 films between 1910 and 1952 and directed 38 silent films between 1915 and 1927.
Document 12: James Ellroy: Lee Earle "James" Ellroy (born March 4, 1948) is an American crime fiction writer and essayist. Ellroy has become known for a telegrammatic prose style in his most recent work, wherein he frequently omits connecting words and uses only short, staccato sentences, and in particular for the novels "The Black Dahlia" (1987), "The Big Nowhere" (1988), "L.A. Confidential" (1990), "White Jazz" (1992), "American Tabloid" (1995), "The Cold Six Thousand" (2001), and "Blood's a Rover" (2009).
Document 13: Red Rock West: Red Rock West is a 1993 American neo-noir film directed by John Dahl and starring Nicolas Cage, Lara Flynn Boyle, J. T. Walsh and Dennis Hopper. It was written by Dahl and his brother Rick, and shot in Montana and Willcox, Arizona.
Document 14: Sidney J. Furie: Sidney J. Furie (born February 28, 1933) is a Canadian film director, screenwriter, and producer best known for his extensive work in both British and American cinema between the 1960s and early 1980s. Like his contemporaries Norman Jewison and Ted Kotcheff, he was one of earliest Canadian directors to achieve mainstream critical and financial success outside their native country at a time when its film industry was virtually nonexistent. He won a BAFTA Film Award and was nominated for a Palme d'Or for his work on the acclaimed spy thriller "The Ipcress File" starring Michael Caine.
Document 15: Neon noir: Neon-noir cinema is a contemporary rendering of the film noir. A subset of the neo-noir genre, both take their name from the films noir: the highly stylised Hollywood crime dramas of the 1940’s and 50’s. The term film noir when translated to English reads ‘dark film’, alluding to the genre's dark or sinister sensibilities. This shaded undertone is highly characteristic of films noir, also marked by their dramatic use of lighting and shadow play, hard-boiled and often complex plot lines, reversed stereotypes, the presence of crime and violence, off-centre and tilted camera angles, cityscape shots or montages, and dreamlike aesthetic, to name but a few.
ground_truth: Scott Sidney