Question: Who directed the movie based on an erotic novel first published in Vienna, Austria in 1906?
Context: Sensational Janine (German: "Josefine Mutzenbacher... wie sie wirklich war - 1.  Teil") is a 1976 West German hardcore costume drama-sex comedy film directed by Hans Billian.  The film is an adaptation of the anonymous novel "Josephine Mutzenbacher" on the life of the eponymous and fictional "fin-de-siècle" Viennese courtesan. Josephine Mutzenbacher – The Life Story of a Viennese Whore, as Told by Herself (German: "Josefine Mutzenbacher oder Die Geschichte einer Wienerischen Dirne von ihr selbst erzählt" ) is an erotic novel first published anonymously in Vienna, Austria in 1906.  The novel is famous in the German-speaking world, having been in print in both German and English for over 100 years and sold over 3 million copies, becoming an erotic bestseller. Irene's Cunt (French: "Le Con d'Irène") is a short erotic novel written by the French poet and novelist Louis Aragon under the pseudonym Albert de Routisie, first published in 1928.  Its title is rendered in English variously as "Irene" or "Irene's Cunt."  Jean-Jacques Pauvert has called the novel "one of the four or five most beautiful poetic works produced by surrealism". Memoirs of a Woman of Pleasure (popularly known as Fanny Hill, an anglicisation of the Latin "mons veneris", mound of Venus) is an erotic novel by English novelist John Cleland first published in London in 1748.  Written while the author was in debtors' prison in London, it is considered "the first original English prose pornography, and the first pornography to use the form of the novel".  It is one of the most prosecuted and banned books in history. Three Comrades (German: "Drei Kameraden" ) is a novel first published in 1936 by the German author Erich Maria Remarque.  It is written in first person by the main character Robert Lohkamp, whose somewhat disillusioned outlook on life is due to his horrifying experiences in the trenches of the First World War's French-German front.  He shares these experiences with Otto Köster and Gottfried Lenz, his two comrades with whom he runs an auto-repair shop in late 1920s Berlin (probably).  Remarque wrote the novel in exile and it was first published in Dutch translation as "Drie kameraden", with English translation following soon in "Good Housekeeping" from January to March 1937 and in the book form in the same year.  First German language edition was published in 1938 by exile publisher "Querido" in Amsterdam, but the novel was published in Germany only in 1951. The Autobiography of a Flea is an anonymous erotic novel first published in 1887 in London by Edward Avery.  Later research has revealed that the author was a London lawyer of the time named Stanislas de Rhodes. Due West: Our Sex Journey is a 2012 Hong Kong 3-D erotica film directed and written by Mark Wu, starring Justin Cheung, Gregory Wong, Celia Kwok, Jeana Ho, and Daniella Wang.  It is based on the erotic novel entitled "Dongguan Wood", first published as a series of online stories by pseudonymous author Xiang Xi Murakami Haruki.  The film premiered in Hong Kong on September 20, 2012. The Lustful Turk, or Lascivious Scenes from a Harem is a pre-Victorian British erotic epistolary novel first published anonymously in 1828 by John Benjamin Brookes and reprinted by William Dugdale.  However, it was not widely known or circulated until the 1893 edition. The Way of a Man with a Maid is an anonymous, sadomasochistic, erotic novel, probably first published in 1908.  The story is told in the first person by a gentleman called "Jack", who lures women he knows into a kind of erotic torture chamber, called "The Snuggery", in his house, and takes considerable pride in meticulously planned rapes which he describes in minute detail. Gamiani, or Two Nights of Excess (French: "Gamiani, ou deux nuits d'excès" ) is a French erotic novel first published in 1833.  Its authorship is anonymous, but it is believed to have been written by Alfred de Musset and the lesbian eponymous heroine a portrait of his lover, George Sand.  It became a bestseller among nineteenth century erotic literature.
Answer: Hans Billian