|Directed by|| Erich Schönfelder |
|Written by||Hans Stürm|
|Produced by||Richard Eichberg|
|Music by||Hans May|
Princess Trulala (German : Prinzessin Trulala) is a 1926 German silent comedy film directed by Erich Schönfelder and Richard Eichberg and starring Lilian Harvey, Dina Gralla and Harry Halm. It was shot at the Johannisthal Studios in Berlin. The film's sets were designed by art director Kurt Richter. As was common in her silent films, Harvey's heroine has to choose between several different suitors. 
The young and wild Princess Trulala should finally get married! Her chosen one is the young and beautiful Prince Arnulf, whose father of the same name, the old Prince of Leinefeld, rules over a small empire. In order to get to know her groom better, Princess Trulala travels with her sister, Princess Hopsassa, both disguised as waitresses, to the residence of the young prince. The Prince too wants to get to know his bride better, and dresses up as a forester. Of course, as usual for a comedy of confusion of that time, this leads to all sorts of more or less funny misunderstandings.
Since the two waitresses are quite handsome, the village boys in Prince Arnulf's empire are now also beginning to develop interest in Trulala and Hopsassa, which in turn arouses plenty of displeasure among the village beauties of the country. When Trulala and Arnulf got to know each other better, they quickly take a liking to each other and want to escape the whole Tohuwabohu by tearing away to Munich. The old prince promptly leaves, believing that he has to free Arnulf junior from this improper "woman", this waitress. But eventually everything dissolves in pleasure, and Prince Arnulf gives his blessing to his son's marriage to that false "waitress", Princess Trulala. And quite en passé, the old man also finds pleasure in Trulala's sister Hopsassa, whom he finally leads home.
Writing for the Immortal Film Heinrich Fraenkel stated: "For Richard Eichberg, it was agreed that the cinema audience would love nothing more than adventurous princesses who sit on cavalier knees, drink champagne and cause teasing stirs. How much he was right when his theory was proven by the success of the film Princess Trulala". 
Aloys II was the sovereign Prince of Liechtenstein from 20 April 1836 until his death in 1858. He was a son of Johann I Joseph, Prince of Liechtenstein, and Landgravine Josepha of Fürstenberg-Weitra, and a nephew of Prince Aloys I. Aloys II married Countess Franziska Kinsky of Wchinitz and Tettau and had two sons and three daughters with her, with their two sons later ruling Liechtenstein as Johann II and Franz I. Aloys contributed actively to Liechtenstein's economic and political development.
The Student Prince in Old Heidelberg, also known as The Student Prince and Old Heidelberg, is a 1927 Metro-Goldwyn-Mayer silent drama film based on the 1901 play Old Heidelberg by Wilhelm Meyer-Förster. It was directed by Ernst Lubitsch, and stars Ramon Novarro and Norma Shearer.
Lilian Harvey was an Anglo-German actress and singer, long based in Germany, where she is best known for her role as Christel Weinzinger in Erik Charell's 1931 film Der Kongreß tanzt.
Willy Fritsch was a German theater and film actor, a popular leading man and character actor from the silent-film era to the early 1960s.
Der Kongress tanzt is a German musical comedy film produced in 1931 by Ufa, directed by Erik Charell, starring Lilian Harvey as Christel Weinzinger, the glove seller, Willy Fritsch as Tsar Alexander I of Russia and his doppelgänger, Uralsky, Otto Wallburg as Bibikoff, his Adjutant, Conrad Veidt as Prince Metternich, Carl-Heinz Schroth as his Secretary, Pepi, Lil Dagover as the Countess and Alfred Abel as the King of Saxony.
Countess Franziska de Paula Kinsky von Wchinitz und Tettau was princess consort of Liechtenstein from 1836 to 1858 as the wife of Aloys II, Prince of Liechtenstein, and her son's regent from 1858 to 1860.
Bruno Mondi was a German cameraman and director of photography.
Dina Gralla was a German film actress.
Harry Halm was a German film actor.
Her Dark Secret is a 1929 German silent comedy film directed by Johannes Guter and starring Lilian Harvey, Willy Fritsch, and Harry Halm. The film reunited Harvey and Fritsch who had previously appeared together in Chaste Susanne (1926), although this time their characters become a couple at the end of the film. This provided a template for a number of popular films over the following decade such as The Three from the Filling Station.
Passion is a 1925 German silent drama film directed by Richard Eichberg and starring Otto Gebühr, Lilian Harvey and Camilla von Hollay. Harvey was by this time a rising star, and followed it with her breakthrough film Love and Trumpets released the same year.
The Prince of Pappenheim is a 1927 German silent comedy film directed by Richard Eichberg and starring Mona Maris, Curt Bois and Dina Gralla. Bois' character of an ambitious young man was closely modelled on the early film appearances of Ernst Lubitsch. It was shot at the Babelsberg Studios and on location in Baden-Baden. The film's art direction was by Jacek Rotmil. It premiered at the Gloria-Palast in Berlin.
Der Ladenprinz is a 1928 German silent film directed by Erich Schönfelder, starring Harry Halm, La Jana and Paul Henckels and also with La Jana, Sig Arno and Hermine Sterler. It was adapted from a novel by Kurt Münzer. The film's art direction was by Andrej Andrejew.
Konstantin Irmen-Tschet was a Russian Empire-born German cinematographer. Irmen-Tschet was a leading technician of German films from the silent era to well into the post-Second World War years. He also often worked in Switzerland.
Love and Trumpets is a 1925 German silent comedy film directed by Richard Eichberg and starring Lilian Harvey, Harry Liedtke, and Harry Halm. It was shot at the Johannisthal Studios in Berlin. The film's sets were designed by the art director Kurt Richter.
The Model from Montparnasse or Adieu Mascotte is a 1929 German comedy film directed by Wilhelm Thiele and starring Lilian Harvey, Igo Sym and Marietta Millner. Originally made as a silent film, it later had synchronized sound added. It is set in the Demimonde of Paris with a heroine working as an artist's model.
The Girl on the Road is a 1925 German silent comedy film directed by Richard Eichberg and starring Lilian Harvey and Hans Brausewetter. It was shot at the Johannisthal Studios in Berlin with location shooting in cities across Germany. The the film's sets were designed by the art director Kurt Richter.
Once You Give Away Your Heart is a 1929 German comedy film directed by Johannes Guter and starring Lilian Harvey, Igo Sym, and Harry Halm. Made at the time of the conversion to sound film, it was released in both sound and silent versions.
Why Cry at Parting? is a 1929 British-German silent film directed by Richard Eichberg and starring Dina Gralla, Harry Halm and Paul Morgan.
The Old Fritz is a 1928 German silent historical drama film directed by Gerhard Lamprecht and starring Otto Gebühr, Julia Serda and Bertold Reissig. Part of the cycle of Prussian Films, it was released in two parts. Gebühr played the role of Frederick the Great on many occasions during the Weimar Republic and Nazi Germany.