Question: Which filmmaker is a documentarian, Ulrike Ottinger or William Dieterle?

Context paragraphs:
Ulrike Ottinger: Ulrike Ottinger (born 6 June 1942) is a German filmmaker, documentarian photographer and professor at the European Graduate School in Saas-Fee, Switzerland.

Kismet (1944 film): Kismet is a 1944 Metro-Goldwyn-Mayer film in Technicolor starring Ronald Colman, Marlene Dietrich, Joy Page, and Florence Bates.  James Craig played the young Caliph of Baghdad, and Edward Arnold was the treacherous Grand Vizier.  It was directed by William Dieterle, but was not a success at the box office.  Dieterle had directed Marlene two decades prior in the German silent film "Man by the Wayside", which was both the first role in which Dietrich was cast competitively and Dieterle's directorial debut.

Freak Orlando: Freak Orlando is a 1981 West German comedy film directed by Ulrike Ottinger and starring Magdalena Montezuma.

William Dieterle: William Dieterle (July 15, 1893 – December 9, 1972) was a German actor and film director, who worked in Hollywood for much of his career.  His best known films include "The Devil and Daniel Webster", "The Story of Louis Pasteur" and "The Hunchback of Notre Dame".  His 1937 film "The Life of Emile Zola" won the Academy Award for Best Picture.

Taiga (film): Taiga (1992) is an eight-hour documentary directed and photographed by Ulrike Ottinger.

Joan of Arc of Mongolia: Joan of Arc of Mongolia (German: Johanna D'Arc of Mongolia ) is a 1989 German drama film directed by Ulrike Ottinger.  It was entered into the 39th Berlin International Film Festival.

The Saint and Her Fool: The Saint and Her Fool (German:Die Heilige und ihr Narr) is a 1928 German silent drama film directed by William Dieterle and starring Dieterle, Lien Deyers and Gina Manès.  It was based on a novel by and premiered at the Capital am Zoo in Berlin.  Art direction was by Andrej Andrejew.  For a long time, the movie was considered lost.  Although never released in the US, a nitrate copy was discovered in Jack Warner's personal vault.  In 2008 it was given to the UCLA in Los Angeles and restored.

Quick, Let's Get Married: Quick, Let's Get Married (also known as The Confession) is a 1964 American comedy film directed by William Dieterle and starring Ginger Rogers, Ray Milland and Barbara Eden.  It was produced by Rogers' husband William Marshall in an attempt to revive her screen career.  The film had a troubled production, with original director Victor Stoloff being replaced by Dieterle.  It sat on the shelf for several years and did not get a full release until 1971.

Mistress of the World: Mistress of the World (German: "Die Herrin der Welt" , French: "Les mystères d'Angkor" , Italian: "Il mistero dei tre continenti" ) is a 1960 German-French-Italian science fiction-spy film directed by William Dieterle and starring Martha Hyer and Carlos Thompson.  It marked the comeback in his native country of the director William Dieterle after several decades spent in Hollywood.  In West Germany it was released in a longer version split in two parts ("Die Herrin der Welt - Teil I" and "Die Herrin der Welt - Teil II").

The Korean Wedding Chest: The Korean Wedding Chest is a 2009 documentary film about Korean wedding traditions directed by Ulrike Ottinger.  The German language film was described as "capturing the collision of ancient tradition and modern culture on the subject of love and marriage in Korea in a film that echoes the beauty, precision and care of the rituals she examines" by the "Los Angeles Times".  The "Washington Post"'s website refers to the surrealist style of the film as being well suited to "the regal pacing of the ritual" and calls the film one of Ottinger's most praised works.

Supporting paragraphs: Ulrike Ottinger William Dieterle
Answer: Ulrike Ottinger