Question: Who directed the film that Curt Bois is best remembered for?

Context articles: A Tremendously Rich Man
Casablanca (film)
Jungle Flight
When She Starts, Look Out
Curt Bois
The Prince of Pappenheim
Raymond Bernard
Hold Back the Dawn
Herr Puntila and His Servant Matti (1960 film)
Call at Midnight

A Tremendously Rich Man (German: Ein steinreicher Mann) is a 1932 German comedy film directed by Steve Sekely and starring Curt Bois, Dolly Haas and Adele Sandrock.
 It premiered on 13 February 1932.
 The film was a co-production between the German subsidiary of Universal Pictures and the German firm Tobis Film.
Casablanca is a 1942 American romantic drama film directed by Michael Curtiz and based on Murray Burnett and Joan Alison's unproduced stage play "Everybody Comes to Rick's".
 The film stars Humphrey Bogart, Ingrid Bergman, and Paul Henreid; it also features Claude Rains, Conrad Veidt, Sydney Greenstreet, Peter Lorre, and Dooley Wilson.
 Set during World War II, it focuses on an American expatriate who must choose between his love for a woman and helping her husband, a Czech Resistance leader, escape the Vichy-controlled city of Casablanca to continue his fight against the Nazis.
Jungle Flight is a 1947 American adventure film directed by Sam Newfield and written by Whitman Chambers.
 The film stars Robert Lowery, Ann Savage, Barton MacLane, Douglas Fowley, Robert Kent and Curt Bois.
 The film was released on August 22, 1947, by Paramount Pictures.
When She Starts, Look Out (German: Wehe wenn sie losgelassen) is a 1926 German silent comedy film directed by Carl Froelich and starring Henny Porten, Bruno Kastner and Curt Bois.
Curt Bois (April 5, 1901 – December 25, 1991) was a German actor.
 He is best remembered for his performance as the pickpocket in "Casablanca" (1942).
The Prince of Pappenheim (German: Der Fürst von 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.
 The film's art direction was by Jacek Rotmil.
Raymond Bernard (10 October 1891 – 12 December 1977) was a French film director and screenwriter whose career spanned more than forty years.
 He is best remembered for several large-scale historical productions, including the silent films "Le Miracle des loups" ("The Miracle of the Wolves") and "Le Joueur d'échecs" ("The Chess Player") and in the 1930s "Les Croix de bois" ("Wooden Crosses") and a highly regarded adaptation of "Les Misérables".
Hold Back the Dawn is a 1941 romantic film in which a Romanian gigolo marries an American woman in Mexico in order to gain entry to the United States, but winds up falling in love with her.
 It stars Charles Boyer, Olivia de Havilland, Paulette Goddard, Victor Francen, Walter Abel, Curt Bois and Rosemary DeCamp.
Herr Puntila and His Servant Matti (German: Herr Puntila und sein Knecht Matti) is a 1960 Austrian comedy film directed by Alberto Cavalcanti and starring Curt Bois, Heinz Engelmann and Maria Emo.
 It was made at the Soviet-controlled Rosenhügel Studios in Vienna.
 Production began in 1955, but wasn't completed until 1960.
 The film is based on the play of the same name by Bertolt Brecht.
Call at Midnight (German:Anschluß um Mitternacht) is a 1929 German silent film directed by Mario Bonnard and starring Marcella Albani, Ralph Arthur Roberts and Curt Bois.