Question: In which movie, directed by Robert Siodmak, did Romy Schneider star after she moved to France? Magnificent Sinner

Context articles: The Rough and the Smooth
Victoria in Dover (1954 film)
Romy (TV award)
Romy Schneider
Inquest (1931 German film)
Portrait of a Sinner
Romy: Anatomy of a Face
Magnificent Sinner
Prix Romy Schneider
The Great Sinner

The Rough and the Smooth (alternative title: Portrait of a Sinner) is a 1959 British drama film directed by Robert Siodmak and starring Nadja Tiller, Tony Britton, William Bendix and Edward Chapman.
 The screenplay concerns an archaeologist who has an affair with a German woman putting his engagement to another woman in jeopardy.
 It was based on a novel by Robin Maugham.
Victoria in Dover (German title: Mädchenjahre einer Königin ) is a 1954 Austrian historical romantic comedy film directed by Ernst Marischka and starring Romy Schneider, Adrian Hoven and Magda Schneider.
 It is a remake of the 1936 Erich Engel film "Victoria in Dover", which was based on a 1932 play by Sil-Vara.
 Romy Schneider's performance as a spirited young royal was a lead-in to her best known role in "Sissi" and its sequels, although Marischka had originally intended to cast Sonja Ziemann as Victoria.
The Romy TV award in honor of the Austrian-born actress Romy Schneider was created in 1990 by the Austrian newspaper "Kurier" – or rather their movie reviewer Rudolf John, who also designed the 30.5 cm gilded trophy.
 It recalls a scene from the movie The Swimming Pool with Alain Delon, when Romy Schneider arranges her dress.
 (See Senta Berger getting the Platinum award in 2007).
 The award ceremony is conducted at the Hofburg in Vienna.
Romy Schneider (23 September 1938 – 29 May 1982) was a film actress born in Vienna who held German and French citizenship.
 She started her career in the German "Heimatfilm " genre in the early 1950s when she was 15.
 From 1955 to 1957, she played the central character of Empress Elisabeth of Austria in the Austrian "Sissi" trilogy.
 Schneider moved to France where she made successful and critically acclaimed films with some of the most notable film directors of that era.
Inquest (German: Voruntersuchung ) is a 1931 German crime film directed by Robert Siodmak and starring Albert Bassermann, Gustav Fröhlich and Hans Brausewetter.
 Along with another film that Siodmak made the same year "Storms of Passion", it anticipates the later development of film noir.
 It was made by German's largest studio Universum Film, with sets designed by art director Erich Kettelhut.
 Paul Martin, who soon after emerged as a leading director, was assistant director to Siodmak on the film.
 It was based on a 1927 play of the same title by Max Alsberg and Ernst Hesse.
Portrait of a Sinner is a 1960 film directed by Robert Siodmak.
Romy: Anatomy of a Face (German: Romy.
 Porträt eines Gesichts ) is a 1967 West German documentary film directed by Hans-Jürgen Syberberg, about the actress Romy Schneider.
 The film was shot at the ski resort of Kitzbühel during three days in February 1966.
 It was made for television.
Magnificent Sinner (original French title: Katia) is a 1959 French film by director Robert Siodmak about the romance between Tsar Alexander II of Russia and the then-schoolgirl Catherine Dolgorukov, who later became his mistress and finally his morganatic wife.
 It stars Romy Schneider as Katia, a schoolgirl who becomes the Tsar's mistress and Curd Jürgens as Tsar Alexander II of Russia.
 The film, originally released as "Katia", was a remake of a 1938 French film of the same name, which starred Danielle Darrieux.
The Prix Romy Schneider (Romy Schneider Award) is awarded annually to a young and upcoming actress working in the French film industry.
The Great Sinner is a 1949 American drama film directed by Robert Siodmak.
 Based on the 1866 short novel "The Gambler" written by Fyodor Dostoyevsky, the film stars Gregory Peck, Ava Gardner, Frank Morgan, Ethel Barrymore, Walter Huston, Agnes Moorehead and Melvyn Douglas.