Question: Were Josef von Sternberg and Fred C. Newmeyer involved in film making?

full_context: Document 1: Mervyn LeRoy: Mervyn LeRoy (October 15, 1900 – September 13, 1987) was an American film director, film producer and occasional actor.
Document 2: Fred Guiol: Fred Guiol (February 17, 1898 – May 23, 1964) was an American film director and screenwriter. Guiol worked at the Hal Roach Studios for many years, and directed Laurel and Hardy's earliest short films, as their famous comic partnership gradually developed during 1927. Along with Ivan Moffat, he was nominated for an Academy Award for Writing Adapted Screenplay for adapting Edna Ferber's novel "Giant" into the film "Giant".
Document 3: 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 4: Fred Fleck: Fred Fleck (June 6, 1892 – November 9, 1961), also known as Fred A. Fleck, Frederick Fleck, or Freddie Fleck, was an American assistant director and production manager. Born in New York City on June 4, 1892, he broke into the film business as an assistant director on the 1928 silent film, "The Riding Renegade", directed by Wallace Fox. During his 30-year career, he would work on some notable films, with some notable directors. Some of those films include: the epic "Hell's Angels" (1930), directed by Howard Hughes; King Vidor's "Bird of Paradise" (1932); the Ginger Rogers' 1941 vehicle, Tom, Dick and Harry, directed by Garson Kanin; 1942's "The Magnificent Ambersons", directed by Orson Welles, and starring Joseph Cotten and Anne Baxter; "Born to be Bad" (1950), starring Joan Fontaine and Robert Ryan; and Josef von Sternberg's "Jet Pilot" (1957), starring John Wayne. Fleck was also one of the aerial cameramen on George Archainbaud's classic 1932 film, "The Lost Squadron".
Document 5: Fred C. Newmeyer: Fred C. Newmeyer (August 9, 1888 – April 24, 1967) was an American actor, film director and film producer.
Document 6: The Salvation Hunters: The Salvation Hunters (1925) is an American silent film, the first work directed by young Josef Sternberg, later known as Josef von Sternberg.
Document 7: Erich von Stroheim: Erich von Stroheim (born Erich Oswald Stroheim; September 22, 1885 – May 12, 1957) was an Austrian-American director, actor and producer, most notable as being a film star of the silent era, subsequently noted as an auteur for his directorial work. He died in 1957 in France, at age 71.
Document 8: Josef von Sternberg: Josef von Sternberg, (29 May 1894 – 22 December 1969) was an Austrian-American film director. His family emigrated permanently to the United States when he was fourteen, and he grew up in New York City. He started working at World Film Company in Fort Lee, New Jersey, where he was mentored by French director Emile Chautard.
Document 9: Albert Stern (violinist): Violinist Albert Ivan Stern was born in New York City. His parents, father Murray Abraham Shmulevitch and mother Grace Sara Stern (née Gold), were both Jewish and born in Poland. Grace Gold immigrated to the US as a child and Murray immigrated later after graduating from Humboldt University of Berlin as a Doctor of medicine. After arriving in the US, Murray entered a lifelong career in business sales and, following in the footsteps of his father, became a prominent builder. Both his mother and father came from families of predominantly musicians. He had an older brother Stanley Stern (later known as Jack Stern) and an older sister Florence London. Stern has 4 children, daughters Adina T. Stern, a prominent attorney, Aura L. Stern, a financier, daughter Shereen A. Stern, a nurse, and son Shawn Stern, a novelist. He is married to Patricia A Stern (Née Trzaska).
Document 10: Joe May: Joe May (7 November 1880, in Vienna – 29 April 1954, in Hollywood), born Joseph Otto Mandel, was a film director and film producer born in Austria and one of the pioneers of German cinema.
Document 11: Von Sternberg House: The Von Sternberg House was mini-mansion designed by the architect Richard Neutra. With only one bedroom, plus bedrooms for servants, it was built in 1935 at 10000 Tampa Avenue, Northridge, Chatsworth, on a plot of 13 acres (5 hectares) in California's then-rural San Fernando Valley for the movie director Josef von Sternberg. The house was demolished in 1972 to make way for a housing development.
Document 12: George Melford: George H. Melford (February 19, 1877 – April 25, 1961) was an American stage and film actor, director, producer, and screenwriter. Often taken for granted as a director today, the stalwart Melford's name by the 1920s was, like Cecil B. DeMille's, appearing in big bold letters above the title of his films.
Document 13: Paul L. Stein: Paul Ludwig Stein (4 February 1892 – 2 May 1951) was an Austrian-born film director with 67 films to his credit. Stein began his career in Berlin in 1918 and worked exclusively in the German silent film industry until 1926, when he first went to Hollywood, and spent the next five years commuting between Germany and the U.S., where he worked with stars such as Jeanette MacDonald, Lillian Gish and Constance Bennett.
Document 14: Fred Paul: Fred Paul (1880 – 1967) was a Swiss-born British actor and film director. Paul was born in Lausanne in 1880 but moved to Britain at a young age. He was a prolific actor and director in the 1910s and 1920s, but his career dramatically declined with the arrival of sound films.
Document 15: Frederic Zelnik: Frederic Zelnik (17 May 1885 - 29 November 1950) was one of the most important producers-directors of the German silent cinema. He also appeared on screen as an actor.
ground_truth: yes