Song Without End, subtitled The Story of Franz Liszt (1960) is a biographical film romance made by Columbia Pictures.
 It was directed by Charles Vidor, who died during the shooting of the picture and was replaced by George Cukor.
 It was produced by William Goetz from a screenplay by Oscar Millard, revised (uncredited) by Walter Bernstein and based on screenwriter Oscar Saul's original 1952 script (uncredited).
 The music score was by Morris Stoloff and Harry Sukman with music by Franz Liszt, and the cinematography by James Wong Howe and Charles Lang (uncredited).
 The film also featured music of those contemporaries of Liszt whom he unselfishly championed by featuring them in his numerous performances (e.g., Richard Wagner, Hector Berlioz, among others).
Charles Vidor (July 27, 1900June 4, 1959) was a Hungarian film director.
King Wallis Vidor ( ; February 8, 1894 – November 1, 1982) was an American film director, film producer, and screenwriter whose career spanned nearly seven decades.
 In 1979, he was awarded an Honorary Academy Award for his "incomparable achievements as a cinematic creator and innovator."
 He was nominated five times for a Best Director Oscar, and won eight international film awards during his career.
 Vidor's best known films include "The Big Parade" (1925), "The Crowd" (1928), "Stella Dallas" (1937), and "Duel in the Sun" (1946).
 (He is not related to fellow director Charles Vidor).
George E. Marshall (December 29, 1891 – February 17, 1975) was an American actor, screenwriter, producer, film and television director, active through the first six decades of movie history.
A Song to Remember is a 1945 Columbia Pictures Technicolor biographical film which tells a fictionalised life story of Polish pianist and composer Frédéric Chopin.
 Directed by Charles Vidor, the film starred Cornel Wilde (as Chopin), Merle Oberon (as George Sand), Paul Muni (as Józef Elsner), Stephen Bekassy (as Franz Liszt), and Nina Foch.
The Tuttles of Tahiti is a 1942 film directed by Charles Vidor and starring Charles Laughton and Jon Hall.
 It was based on the novel "No More Gas" by James Norman Hall and Charles Nordhoff.
Ray Lissner (January 10, 1903 – April 28, 1944) was an American filmmaker who worked during the end of the silent era into the beginning of sound films.
 He spent his entire career as an assistant director, working with such directors such as Herbert Brenon, Charles Vidor, George Archainbaud, and Otto Brower.
Charles Marshall (October 3, 1830 – April 19, 1902) was a Confederate Army officer during the American Civil War.
 Marshall served as an aide de camp, assistant adjutant general and military secretary to Gen. Robert E. Lee.
 He was also a cousin of World War II General George Marshall.
A Doctor's Diary is a 1937 American drama film directed by Charles Vidor and written by David Boehm and Samuel Ornitz.
 The film stars George Bancroft, Helen Burgess, John Trent, Ruth Coleman, Ronald Sinclair and Molly Lamont.
 The film was released on January 22, 1937, by Paramount Pictures.
Reverend George Marshall (1753 in Bishop Waltham, Hants – 1819) served as a curate in Horsham for over thirty years, from about 1778 until his death in 1819, although he was not fully ordained as a minister until 1802.
 Marshall also acted as chaplain to the prisoners in Horsham gaol.
 It is clear from some of his letters in the Horsham Museum archives that George Marshall was a somewhat awkward and abrasive character.

Question: George Marshall and Charles Vidor, have which shared occupation?
Answer: film director