Question: Lewis Gilbert and Theodore Wharton are both considered to be what?

Context articles: The Moon Riders (serial)
The Eagle's Eye
Beatrice Fairfax
Theodore Wharton
Abraham Lincoln's Clemency
Lewis Gilbert
The New Exploits of Elaine
The Romance of Elaine
The Indian Wars Refought
The Power of Conscience

The Moon Riders was a 1920 American Western film serial directed by B. Reeves Eason and Theodore Wharton.
 The serial is considered lost.
The Eagle's Eye is a 1918 American serial film consisting of 20 episodes that dramatizes German espionage in the United States during World War I.
 It features King Baggot in the lead role as the daring espionage agent.
 Among the events depicted are the sending of the Zimmermann Telegram, Franz von Rintelen's attempts to sabotage cargo loading in San Francisco Harbor, and the capture of the German espionage plans.
 It was directed by George Lessey, Wellington A. Playter, Leopold Wharton, and Theodore Wharton, and produced by the Whartons Studio.
 The serial is now considered lost.
 Because this serial was a commercial failure, it was the last one made by Whartons due to the studio being forced to declare bankruptcy.
Beatrice Fairfax is an American silent film serial directed and produced by Leopold Wharton and Theodore Wharton.
 First released on August 7, 1916, the series consists of 15 weekly episodes and features the character of "Beatrice Fairfax" (Grace Darling).
 The character was inspired by the popular newspaper advice column "Ask Beatrice Fairfax", which had been the world's first column of its kind when launched in 1898.
Theodore Wharton (1875–1931) was an American film director, producer and writer.
 He directed 48 films in the 1910s and 1920s, including the 1915 "The New Adventures of J. Rufus Wallingford", which featured Oliver Hardy.
Abraham Lincoln's Clemency was a 1910 American film directed by Theodore Wharton and produced by Pathé Films.
 The plot revolves around US President Abraham Lincoln pardoning a hapless sentry who had fallen asleep while on duty during the height of the Civil War.
 Due to the soldier's incompetence he is due to face the firing squad.
 However, his mother pleads with the President to save her son, which, as the title suggests, he does.
 The film was a single reel in length.
Lewis Gilbert, {'1': ", '2': ", '3': ", '4': "} (born 6 March 1920) is a British film director, producer and screenwriter, who has directed more than 40 films during six decades; among them such varied titles as "Reach for the Sky" (1956), "Sink the Bismarck!
" (1960), "Alfie" (1966), "Educating Rita" (1983) and "Shirley Valentine" (1989), as well as three James Bond films: "You Only Live Twice" (1967), "The Spy Who Loved Me" (1977) and "Moonraker" (1979).
The New Exploits of Elaine is a 1915 American action film serial directed by Louis J. Gasnier, Leopold Wharton and Theodore Wharton.
 It is presumed to be lost.
The Romance of Elaine is a 1915 American silent adventure film serial directed by George B. Seitz, Leopold Wharton and Theodore Wharton, based on the novel by Arthur B. Reeve.
 The film is considered to be lost.
The Indian Wars Refought is a 1914 American drama silent film that depicts several historical battles of The Indian Wars.
 The film was directed by Theodore Wharton and stars William F. Cody, Nelson Appleton Miles and Charles King, all of whom participated in the actual battles depicted in the movie.
 The feature was produced by the Buffalo Bill Historical Picture Company and Essanay Film Mfg. Company.
 The film was released in August 1914, but according to modern sources, it only played in Denver and New York City because of pressure from the government, which disapproved of its content because it showed the Indians in a somewhat favorable light.
 It is now considered a lost film.
The Power of Conscience is a 1913 silent film short film directed by Theodore Wharton and starring Francis X. Bushman.
 It was produced by the Essanay Film Company and distributed through General Film Company.