Flight for Freedom (aka "Stand to Die") is a 1943 American drama film directed by Lothar Mendes and starring Rosalind Russell, Fred MacMurray and Herbert Marshall.
 Film historians and Earhart scholars consider "Flight for Freedom" an "a-clef" version of the Amelia Earhart life story, concentrating on the sensational aspects of her disappearance during her 1937 world flight.
 The film's ending speculated that the main character's disappearance was connected to a secret mission on behalf of the U.S. government.
 As a propaganda film, the Japanese characters in "Flight for Freedom" were portrayed as devious and evil.
International Squadron (aka Flight Patrol) is a 1941 American war film directed by Lewis Seiler and Lothar Mendes that starred Ronald Reagan, Olympe Bradna and in his final film, James Stephenson.
 The film is based on the Eagle Squadrons, American pilots who volunteered to fly for the Royal Air Force during World War II.
 "International Squadron" featured noted Hollywood pilot Paul Mantz who acted as the film's aerial coordinator and flew during the production.
Paramount on Parade is a 1930 all-star American Pre-Code revue released by Paramount Pictures, directed by several directors including Edmund Goulding, Dorothy Arzner, Ernst Lubitsch, Rowland V. Lee, A. Edward Sutherland, Lothar Mendes, Otto Brower, Edwin H. Knopf, Frank Tuttle, and Victor Schertzinger—all supervised by the production supervisor, singer, actress, and songwriter Elsie Janis.
Three Cuckoo Clocks (German:Die drei Kuckucksuhren) is a 1926 German silent drama film directed by Lothar Mendes and starring Lillian Hall-Davis, Nina Vanna and Nils Asther.
 It premiered at the Gloria-Palast in Berlin on 25 May 1926.
 It was based on a novel by .
 Unlike many of Mendes' films from the period, which are now considered lost, it still survives.
Statross le Magnifique is a 2006 film by director Rémi Lange featuring actor Jann Halexander.
Prince of Tempters is a 1926 American silent romance film directed by Lothar Mendes and starring Lois Moran, Ben Lyon and Lya De Putti.
 It is based on the novel "The Ex-Duke" by the British writer E. Phillips Oppenheim.
 The film was made at the Cosmopolitan Studios in New York.
 It was the first film made in America by the German director Lothar Mendes, who married Dorothy Mackaill while working on the production.
Luxury Liner is a 1933 American pre-Code drama film directed by Lothar Mendes and starring George Brent, Zita Johann and Vivienne Osborne.
 It was based on a 1932 novel by Gina Kaus, and made by Paramount Pictures.
 Mendes worked on a number of films for Paramount during the era.
 Shortly after making the film, he went to Britain where he directed his most celebrated film "Jew Süss".
The Man Who Could Work Miracles is a black-and-white 1936 British fantasy-comedy film directed by the German-born American director Lothar Mendes.
 Reputedly the best-known of Mendes' 20 films, it's a greatly expanded version of H. G. Wells’s short story of the same name and stars Roland Young with a cast of supporting players including Sir Ralph Richardson and in a London Films production from the famous Hungarian-born British producer, Sir Alexander Korda.
 H.G. Wells himself worked on the adaptation, the plot revised to reflect Wells's socialist frustrations with the British upper class, and the growing threat of Communism, Fascism and Nazism in Europe at the time, something to which Mendes, Korda and Wells were all committed to combating in their creative work.
Lothar Mendes (19 May 1894 – 25 February 1974) was a German-born screenwriter and film director.
 who began his career as an actor in Vienna and Berlin in Max Reinhardt's famous troupe.
 He went to America in the early 1920s and there he remained until 1933, directing more than a dozen features, mostly frothy comedies, while under contract to Paramount.
 His films included the last silent film made in America, "The Four Feathers" (1929) and the murder mystery "Payment Deferred" (1933) starring British expatriate Charles Laughton.
Rémi Lange (born 4 February 1969 in Gennevilliers, Hauts-de-Seine) is a French film director.
 Lange's films have mostly been released directly to video, except "Omelette" (1998) where he filmed his own coming out, and its sequel "Les Yeux brouillés" (2000), which both had general cinematic release in France.
 His films have been shown and have won awards at film festivals around the world.

Question: Were Rémi Lange and Lothar Mendes both film directors?
Answer: yes