Question: Are Dorothy Arzner and Justin David Swibel directors?
Context: Justin David Swibel (born April 1, 1983) is an American screenwriter, director, and producer. Dorothy Emma Arzner (January 3, 1897 – October 1, 1979) was an American film director whose career in feature films spanned from the silent era of the late 1920s into the early 1940s.  In fact, Dorothy Arzner was the only female director working in the 1930s in the United States.  She was one of the very few women who established a name for herself as a director in the American film industry during this time. Dorothy Hall (December 3, 1906 – February 2, 1953) was an American film actress in the late 1920s and early 1930s.  She began her career as an actress on Broadway and transitioned fully into film acting in the late 1920s.  She had small roles in films such as "The Winning Oar" (1927) and "The Broadway Drifter" (1927) and was later featured in the Vitaphone short "In the Nick of Time" (1929) and "The Laughing Lady" (1929).  Her final and best known film role was in Dorothy Arzner's "Working Girls" (1931) where she plays Mae Thorpe.  Dorothy Hall died on February 2, 1953 in New York City. First Comes Courage is a 1943 American war film, the final film directed by Dorothy Arzner, one of the few female directors in Hollywood at the time.  The film was based on the 1943 novel "Commandos" by Elliott Arnold, adapted by George Sklar, with a screenplay by Melvin Levy and Lewis Meltzer.  It stars Merle Oberon and Brian Aherne. Arthur Roberts July 17, 1890 – February 5, 1961), also known as Arthur E. Roberts, was an American film editor who edited over 100 films during his almost 30 year career.  He began ending towards the end of the silent era of the film industry, his first film being 1927's "The College Hero", directed by Walter Lang.  His last film was Republic's "Lay That Rifle Down" in 1955, after which he spent a brief period as the editor for the television series, "Lassie", before retiring in 1956.  During his career he would work with many famous directors, including Frank Capra (on several films, including "The Donovan Affair"), Lowell Sherman (on "The Royal Bed"), William Seiter (on several films, including "Way Back Home"), Edward Cline (on "Cracked Nuts"), George Cukor ("A Bill of Divorcement"), Dorothy Arzner (the first female member of the DGA, on "Christopher Strong"), Anthony Mann ("Strangers in the Night"), George Archainbaud ("Girls of the Big House"), Fritz Lang ("House by the River"), The Women in Film Crystal + Lucy Awards—first presented in 1977 by the now–Los Angeles chapter of the Women in Film organization—are presented to honor women in communications and media.  The awards include the Crystal Award, the Lucy Award, the Dorothy Arzner Directors Award, the MaxMara Face of the Future Award, and the Kodak Vision Award. Paramount on Parade is a 1930 all-star American Pre-Code revue released by Paramount Pictures, directed by several directors including Edmund Goulding, Dorothy Arzner, Ernst Lubitsch, Rowland V. Lee, A. Edward Sutherland, Lothar Mendes, Otto Brower, Edwin H. Knopf, Frank Tuttle, and Victor Schertzinger—all supervised by the production supervisor, singer, actress, and songwriter Elsie Janis. Pam Cook (born 6 January 1943, Farnborough, Hampshire, UK) is Professor Emerita in Film at the University of Southampton.  She was educated at Sir William Perkins's School, Chertsey, Surrey and Birmingham University, where she was taught by Stuart Hall, Richard Hoggart, Malcolm Bradbury and David Lodge.  Along with Laura Mulvey and Claire Johnston, she was a pioneer of 1970s Anglo-American feminist film theory.  Her collaboration with Claire Johnston on the work of Hollywood film director Dorothy Arzner provoked debate among feminist film scholars over the following decades. Honor Among Lovers is a 1931 American Pre-Code drama film made by Paramount Pictures, directed by Dorothy Arzner.  The film stars Claudette Colbert, Fredric March, Monroe Owsley, Charles Ruggles and Ginger Rogers. Marion Morgan (January 4, 1881, New Jersey – November 10, 1971, Los Angeles, CA) was a choreographer and motion picture screenwriter and the longtime companion of motion picture director Dorothy Arzner.  Arzner lived for the last 40 years of her life with Morgan.
Answer: yes