Question: What occupation do both Jean Negulesco and Frank Borzage perform?

full_context: Document 1: 7th Heaven (1927 film): 7th Heaven (also known as Seventh Heaven) is a 1927 American silent romantic drama directed by Frank Borzage, and starring Janet Gaynor and Charles Farrell. The film is based upon the 1922 play "Seventh Heaven", by Austin Strong and was adapted for the screen by Benjamin Glazer. "7th Heaven" was initially released as a standard silent film in May of 1927. On September 10, 1927, Fox Film Corporation re-released the film with a synchronized Movietone soundtrack with a musical score and sound effects.
Document 2: Frank Borzage: Frank Borzage ( ; April 23, 1894 – June 19, 1962) was an American film director and actor, most remembered for directing "7th Heaven" (1927), "Man's Castle" (1933), and "The Mortal Storm" (1940).
Document 3: Mikio Naruse: Mikio Naruse (成瀬 巳喜男 , Naruse Mikio , August 20, 1905 – July 2, 1969) was a Japanese filmmaker, screenwriter, and producer who directed some 89 films spanning the period 1930 (towards the end of the silent period in Japan) to 1967.
Document 4: Buster Keaton: Joseph Frank "Buster" Keaton (October 4, 1895 – February 1, 1966) was an American actor, comedian, film director, producer, screenwriter, and stunt performer. He was best known for his silent films, in which his trademark was physical comedy with a consistently stoic, deadpan expression, earning him the nickname "The Great Stone Face." Critic Roger Ebert wrote of Keaton's "extraordinary period from 1920 to 1929, [when] he worked without interruption on a series of films that make him, arguably, the greatest actor–director in the history of the movies". His career declined afterward with a dispiriting loss of his artistic independence when he was hired by Metro-Goldwyn-Mayer and he descended into alcoholism, ruining his family life. He recovered in the 1940s, remarried, and revived his career to a degree as an honored comic performer for the rest of his life, earning an Academy Honorary Award in 1959.
Document 5: Jean Renoir: Jean Renoir (] ; 15 September 1894 – 12 February 1979) was a French film director, screenwriter, actor, producer and author. As a film director and actor, he made more than forty films from the silent era to the end of the 1960s. His films "La Grande Illusion" (1937) and "The Rules of the Game" (1939) are often cited by critics as among the greatest films ever made. He was ranked by the BFI's "Sight & Sound" poll of critics in 2002 as the fourth greatest director of all time. Among numerous honors accrued during his lifetime, he received a Lifetime Achievement Academy Award in 1975 for his contribution to the motion picture industry. Renoir was the son of the painter Pierre-Auguste Renoir. He was one of the first filmmakers to be known as an "auteur".
Document 6: Michael Curtiz: Michael Curtiz ( ; born Manó Kaminer, December 24, 1888 April 10, 1962) was a Hungarian-born American film director, recognized as one of the most prolific directors in history. He directed classic films from the silent era and numerous others during Hollywood's Golden Age, when the studio system was prevalent.
Document 7: Victor Fleming: Victor Lonzo Fleming (February 23, 1889 – January 6, 1949) was an American film director, cinematographer, and producer. His most popular films were "The Wizard of Oz" (1939), and "Gone with the Wind" (1939), for which he won an Academy Award for Best Director. Fleming has two films listed in the top 10 of the American Film Institute's 2007 AFI's 100 Years...100 Movies list.
Document 8: Frank Capra: Frank Russell Capra (born Francesco Rosario Capra; May 18, 1897September 3, 1991) was an Italian-American film director, producer and writer who became the creative force behind some of the major award-winning films of the 1930s and 1940s. Born in Italy and raised in Los Angeles from the age of five, his rags-to-riches story has led film historians such as Ian Freer to consider him the "American dream personified."
Document 9: Jean Negulesco: Jean Negulesco (born Ioan Negulescu; 29 February 1900 (O.S.) – 18 July 1993) was a Romanian-American film director and screenwriter.
Document 10: Jean Vigo: Jean Vigo (] ; 26 April 1905 – 5 October 1934) was a French film director who helped establish poetic realism in film in the 1930s; he was a posthumous influence on the French New Wave of the late 1950s and early 1960s.
Document 11: Lucian Pintilie: Lucian Pintilie (] ; born 9 November 1933) is a Romanian film director and screenwriter.
Document 12: Robert Florey: Robert Florey (14 September 1900 – 16 May 1979) was a French-American director, screenwriter, film journalist, and occasional actor.
Document 13: James Whale: James Whale (22 July 1889 – 29 May 1957) was an English film director, theater director and actor. He is best remembered for his four classic horror films: "Frankenstein" (1931), "The Old Dark House" (1932), "The Invisible Man" (1933) and "Bride of Frankenstein" (1935). Whale also directed films in other genres, including what is considered the definitive film version of the musical "Show Boat" (1936). He became increasingly disenchanted with his association with horror, but many of his non-horror films have fallen into obscurity.
Document 14: Eugène Ionesco: Eugène Ionesco (born Eugen Ionescu, ] ; 26 November 1909 – 28 March 1994) was a Romanian-French playwright who wrote mostly in French, and one of the foremost figures of the French Avant-garde theatre. Beyond ridiculing the most banal situations, Ionesco's plays depict the solitude and insignificance of human existence in a tangible way.
Document 15: John Ford: John Ford (February 1, 1894 – August 31, 1973) was an American film director. He is renowned both for Westerns such as "Stagecoach" (1939), "The Searchers" (1956), and "The Man Who Shot Liberty Valance" (1962), as well as adaptations of classic 20th-century American novels such as the film "The Grapes of Wrath" (1940). His four Academy Awards for Best Director (in 1935, 1940, 1941, and 1952) remain a record. One of the films for which he won the award, "How Green Was My Valley", also won Best Picture.
ground_truth: film director