Question: John English and Dorothy Arzner, have which mutual occupation?

Context paragraphs:
Dorothy Hall (actress): 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.

John English (director): John Wilkinson English (25 June 1903 – 11 October 1969) was a British film editor and film director.  He is most famous for the film serials he co-directed with William Witney for Republic Pictures such as "Zorro's Fighting Legion" and "Drums of Fu Manchu".

Christopher Strong: Christopher Strong (a.k.a. "The Great Desire" and "The White Moth") is a 1933 American Pre-Code film, produced by RKO and directed by Dorothy Arzner.  The film starred Colin Clive and Katharine Hepburn (in her second screen role).  The film is a tale of illicit love among the English aristocracy.  The screenplay by Zoë Akins was adapted from the 1932 novel by Gilbert Frankau.

Golden Gate Girls: Golden Gate Girls is a 2013 documentary film focusing on the life and works of Esther Eng (1914-1970), once honored as the first woman director of Southern China.  She crossed boundaries of both gender and culture by making Cantonese language films for Chinese audiences during and after WWII.  She was in fact the only woman directing feature-length films in America after Dorothy Arzner’s retirement in 1943 and before Ida Lupino began directing in 1949.  After her film career, she pioneered in establishing fine dining Chinese Restaurants in New York City.  She left her mark in both the Chinese and English press enabling director S. Louisa Wei to recover some of her lost stories.  Clips from her two extant films, stills from her eight other motion pictures, photos from her six albums, newsreels of San Francisco as she saw them, as well as hundreds of archival images are collected to present her life and work in the most stunning visuals.

Nana (1934 film): Nana is a 1934 American Pre-Code film, produced by Samuel Goldwyn, released through United Artists, starring Anna Sten.  and directed by Dorothy Arzner and George Fitzmaurice.

Ten Modern Commandments: Ten Modern Commandments was a 1927 American silent romantic comedy-drama film that starred Esther Ralston and was distributed through Paramount Pictures.  It is based on an original screen story and was directed by Dorothy Arzner.  The film is now considered lost film.

First Comes Courage: 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.

Honor Among Lovers: 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.

Dorothy Arzner: 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.

Marion Morgan (choreographer): 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.

Supporting paragraphs: John English (director) Dorothy Arzner
Answer: film director