Question: How many films did the actress that is starred in the comic play by Noel Coward and is bet known for her outstanding stage triumph in the role of Blanche du Bois, appear in?
Context: Black Reconstruction in America: An Essay Toward a History of the Part Which Black Folk Played in the Attempt to Reconstruct Democracy in America, 1860–1880 is a history of the Reconstruction era by W. E. B. Du Bois, first published in 1935.  It marked a significant break with the standard academic view of Reconstruction at the time, marked by the Dunning School, which contended that the period was a failure and downplayed the contributions of African Americans.  Du Bois argued directly against these accounts, emphasizing the role and agency of blacks during the Civil War and Reconstruction and framing it as a period that held promise for a worker-ruled democracy to replace a slavery-based plantation economy.  He noted that the southern working class, i.e. black freedmen and poor whites, were divided after the Civil War along the lines of race, and did not unite against the white propertied class, i.e. the former planters.  He believed this failure enabled the white Democrats to regain control of state legislatures, pass Jim Crow laws, and disfranchise most blacks and many poor whites in the late 19th and early 20th centuries. Gaylord McIlvaine Du Bois (sometimes written DuBois) (August 24, 1899 – October 20, 1993) was an American writer of comic book stories and comic strips, as well as Big Little Books and juvenile adventure novels.  Du Bois wrote "Tarzan" for Dell Comics and Gold Key Comics from 1946 until 1971, and wrote over 3,000 comics stories over his career. Major Israel McCreight (Oglala Lakota: "Cante Tanke" ("Great Heart")(Čhaŋté Tȟáŋka) in Standard Lakota Orthography) (April 22, 1865 – October 13, 1958) is notable in American history as a Progressive Era banker, conservationist and expert on Native American culture and policy.  McCreight was a founder of the Pennsylvania Conservation Association, and authored President Theodore Roosevelt’s conservation policy on public education and Cook Forest State Park, the first Pennsylvania State Park acquired to preserve a natural landmark.  McCreight dedicated his life to public education about Native American culture and was a nominee for U.S. Commissioner of Indian Affairs.  McCreight’s relationship with the Lakota people began as a young man in the Dakota Territory in 1885 when he lived with them during a period of great sorrow.  He returned to Du Bois, Pennsylvania, became a successful banker, and led the region into prominence as the biggest bituminous coal producers in the United States between 1890 and World War I. McCreight collaborated with Flying Hawk, an Oglala Lakota Chief, to write a Native American’s view of U.S. history and classic accounts of the Battle of the Little Big Horn, Crazy Horse and commentaries on Native American philosophy.  The Wigwam, McCreight’s home in Du Bois, Pennsylvania, was a Native American heritage center and once the Eastern home of Oglala Lakota ""Oskate Wicasa"" Wild Westers.  McCreight was a founder of the Pennsylvania Banker’s Association and member of the Pennsylvania Society of New York.  McCreight was an ardent student of the Indian, a lover of fair play and an author of books and articles. Betty Ann Davies (24 December 1910 – 14 May 1955) was a British stage and film actress active from the 1920s to the 1950s.  She died young in 1955 aged 44 following an operation.  Miss Davies made her first stage appearance at the Palladium in a revue in 1924.  The following year she joined Cochran's Young Ladies in revues such as "One Dam Thing After Another" and "This Year of Grace".  Betty Ann Davies enjoyed a long and distinguished West End career which included "The Good Companions" 1934, "Morning Star" 1942, and "Blithe Spirit" 1943.  Her outstanding stage triumph was in the role of Blanche du Bois, which she took over from Vivien Leigh, in the original West End production of " A Streetcar Named Desire".  Miss Davis appeared in 38 films, and was active in TV at the time of her death.  She left one son Brook Blackford. The Star of Ethiopia is an American historical pageant written by leading New Negro intellectual, W. E. B. Du Bois in 1911.  Outlining the history of African-Americans throughout time, pageants were held in high regard by Du Bois who felt that Pageants could be utilized best as a form of educational theatre, or as an instructional tool to not only teach African Americans the meaning of their history, but also enlighten whites as to "reveal the negro...as human."  Despite his minimal experience in playwriting, Pageant Movement intellectual W.E.B DuBois composed and constructed for the stage "The Star of Ethiopia" to be presented as an American historical pageant. Shakespeare in Love is a play produced by Disney Theatrical Productions and Sonia Friedman Productions and adapted by Lee Hall from the film of the same title.  It opened at the Noel Coward Theatre in London in July 2014 with running time of 2 hours and 40 minutes. Blithe Spirit is a comic play by Noël Coward.  The play concerns the socialite and novelist Charles Condomine, who invites the eccentric medium and clairvoyant, Madame Arcati, to his house to conduct a séance, hoping to gather material for his next book.  The scheme backfires when he is haunted by the ghost of his annoying and temperamental first wife, Elvira, after the séance.  Elvira makes continual attempts to disrupt Charles's marriage to his second wife, Ruth, who cannot see or hear the ghost. "The Horizon: A Journal of the Color Line" was a monthly periodical in publication during the years 1907 to 1910.  It was the primary communication outlet for the Niagara Movement, and was edited by African-American editor, scholar and author W. E. B. Du Bois.  The magazine was written primarily by African Americans and addressed many African-American themes.  After the National Association for the Advancement of Colored People (NAACP) was formed, publication ceased as Du Bois turned his attention to the NAACP's magazine, "The Crisis", which he also edited.  Prior to "The Horizon", Du Bois published a comparable magazine, " Moon Illustrated Weekly", which lasted for one year in 1906. Akosua Adoma Owusu (born January 1, 1984) is a Ghanaian-American avant-garde filmmaker and producer whose films have screened worldwide in prestigious film festivals, museums, galleries, universities and microcinemas since 2005.  “Owusu uses various production techniques to visualize a state of "triple consciousness", a term she coined in reference to a central tenet of the sociologist and civil rights activist W. E. B. Du Bois’s landmark text "The Souls of Black Folk" (1903).  Du Bois' double consciousness accounts for the experience of black Americans negotiating a sense of selfhood in the face of discrimination and cultural dislocation.  As part of the first generation in her family to be born in the United States, Owusu extends Du Bois’s concept to speak to the crisis of heritage and assimilation for African expatriates and their US-born children."  Owusu has stated that “instead of ‘Africanizing’ Western stories, I’m interested in reclaiming African history rendering them into what is happening in the present day.” The First Pan-African Conference was held in London from 23 to 25 July 1900 (just prior to the Paris Exhibition of 1900 "in order to allow tourists of African descent to attend both events").  Organized primarily by the Trinidadian barrister Henry Sylvester Williams, it took place in Westminster Hall and was attended by 37 delegates and about 10 other participants and observers from Africa, the West Indies, the US and the UK, including Samuel Coleridge Taylor (the youngest delegate), John Alcindor, Dadabhai Naoroji, John Archer, Henry Francis Downing, and W. E. B. Du Bois, with Bishop Alexander Walters of the AME Zion Church taking the chair.  Du Bois played a leading role, drafting a letter ("Address to the Nations of the World") to European leaders appealing to them to struggle against racism, to grant colonies in Africa and the West Indies the right to self-government and demanding political and other rights for African Americans.
Answer: 38