Moderato Cantabile is a novel by Marguerite Duras.
 It was very popular, selling half a million copies, and was the initial source of Duras's fame.
Des journées entières dans les arbres (in English, Entire Days in the Trees) is a 1976 French film directed by Marguerite Duras, based on her novel.
 Prior to directing a film version of the novel, Duras had already modified it into a stageplay that had enjoyed a theatrical run.
India Song is a 1975 French drama film directed by Marguerite Duras.
 "India Song" stars Delphine Seyrig, Michael Lonsdale, Mathieu Carrière, Claude Mann, Vernon Dobtcheff and Didier Flamand.
 The film centres on Anne-Marie (Seyrig), the promiscuous wife of the French ambassador in India, and was based on an unproduced play written by Duras (which itself was based on her published novel "Le Vice-Consul").
 Although set in India, the film was shot mostly on location in a mansion in Paris.
Arthur Rosson (24 August 1886 – 17 June 1960) was an English film director.
 From 1917 to 1948, Rosson directed 61.
 He also worked on many major films as a second unit director until 1960, particularly for Cecil B. DeMille.
La Douleur "(War: A Memoir)" is a controversial, semi-autobiographical work by Marguerite Duras published in 1985 but drawn from diaries that she supposedly wrote during World War II.
 It is a collection of six texts recounting a mix of her experiences of the Nazi Occupation of France, with fictional details.
 She claims to have "forgotten" ever writing the diary in which she recorded her wartime experiences, but most critics believe that to be a deliberate attempt to confuse autobiography and fiction.
 Duras' work is often cited as part of the Nouveau Roman movement which tried to redefine traditional ideas about set categories of books, fiction, non-fiction, biography, autobiography, etc.
La Voleuse, meaning 'the thief', is the French title of a 1966 Franco-German film directed by Jean Chapot, with dialogue by Marguerite Duras, that is called Schornstein Nr.
 4 in German.
La Musica is a 1967 French drama film directed by Marguerite Duras and Paul Séban after Duras' play of the same name () first performed 8 October 1965 at the Studio des Champs-Elysées.
Fine Manners is a 1926 American black-and-white silent comedy film directed initially by Lewis Milestone and completed by Richard Rosson for Famous Players-Lasky/Paramount Pictures.
 After an argument with actress Gloria Swanson, director Milestone walked off the project, causing the film to be completed by Rosson, who had picked up directorial tricks while working as an assistant director to Allan Dwan.
 The success of the film, being Rosson's first directorial effort since he co-directed "Her Father's Keeper" in 1917 with his brother Arthur Rosson, won him a long-term contract with Famous Players-Lasky.
Duras: Duchamp is an album of contemporary classical music by American composer and saxophonist/multi-instrumentalist John Zorn consisting two tribute compositions for Marguerite Duras and Marcel Duchamp.
Marguerite Donnadieu, known as Marguerite Duras (] ; 4 April 1914 – 3 March 1996), was a French novelist, playwright, scriptwriter, essayist, and experimental filmmaker.
 Her 1959 film "Hiroshima mon amour", earned her a nomination for Best Original Screenplay at the Academy Awards.

Question: Who directed more films, Marguerite Duras or Arthur Rosson?
Answer: Arthur Rosson