Question: How many years after his death did the first film to portray the life of the First World War fighter pilot Manfred von Richthofen come out?

Context articles: Manfred von Richthofen (general)
Ferdinand von Richthofen
The Red Baron (2008 film)
Bolko von Richthofen
Manfred von Richthofen
Lothar von Richthofen
Richthofen (film)
The Red Fighter Pilot
Hermann Göring
Manfred von Richthofen (sports official)

Karl Ernst Manfred Freiherr von Richthofen (24 May 1855 – 28 November 1939) was a German "General der Kavallerie" (General of the Cavalry) during World War I and recipient of the order Pour le Mérite, known informally as the Blue Max.
 Richthofen was a great uncle of his more famous namesake Manfred von Richthofen, known as the Red Baron, who was his godson and named after him.
Ferdinand Freiherr von Richthofen (5 May 18336 October 1905), better known in English as Baron von Richthofen, was a German traveller, geographer, and scientist.
 He is noted for coining the terms "Seidenstraße" and "Seidenstraßen" = "Silk Road(s)" or "Silk Route(s)" in 1877.
 He also standardized the practices of chorography and chorology.
 He was an uncle of the World War I flying ace Manfred von Richthofen, best known as the "Red Baron".
The Red Baron (aka Der rote Baron (original title)) is a 2008 German-British biographical action war film written and directed by Nikolai Müllerschön about the World War I fighter pilot Manfred von Richthofen, known as the "Red Baron".
 The film stars Matthias Schweighöfer, Joseph Fiennes, Til Schweiger and Lena Headey.
 "The Red Baron" was filmed entirely in English to improve its international commercial viability.
Bolko von Richthofen (September 13, 1899 – March 18, 1983) was a German archaeologist and a distant relative of the family of Manfred von Richthofen, the "Red Baron".
 He is sometimes confused with his distant cousin and namesake, Karl Bolko von Richthofen (1903–1971) – the youngest brother of the fighter ace.
Manfred Albrecht Freiherr von Richthofen (2 May 1892 – 21 April 1918), also known as the "Red Baron", was a fighter pilot with the German Air Force during World War I.
 He is considered the ace-of-aces of the war, being officially credited with 80 air combat victories.
Lothar Freiherr von Richthofen (born Lothar Siegfried Freiherr von Richthofen; 27 September 1894 – 4 July 1922) was a German First World War fighter ace credited with 40 victories.
 He was a younger brother of top-scoring ace Manfred von Richthofen (the "Red Baron") and a distant cousin of Luftwaffe Field Marshal Wolfram von Richthofen.
Richthofen (aka Richthofen, The Red Knight of the Air and Richthofen, The Red Ace of Germany) is a 1927 German silent war film directed by Desider Kertesz and Peter Joseph.
 The film was subsequently re-mastered with sound and music effects and re-released in the United States in 1929.
 The film stars Georg Burghardt, Sybil Moore and Arne Molander.
 "Richthofen" was the first film to portray the life of the First World War fighter pilot Manfred von Richthofen.
The Red Fighter Pilot (German: "Der Rote Kampfflieger") is a book written by Manfred von Richthofen, a famous German fighter pilot who is considered the top scoring ace of the First World War, being officially credited with 80 air combat victories.
 Richthofen's most common German nickname was "Der Rote Kampfflieger".
Hermann Wilhelm Göring (or Goering; ] ; 12 January 1893 – 15 October 1946) was a German political and military leader as well as one of the most powerful figures in the Nazi Party (NSDAP) that ruled Germany from 1933 to 1945.
 A veteran World War I fighter pilot ace, he was a recipient of the "Pour le Mérite".
 He was the last commander of "Jagdgeschwader" 1, the fighter wing once led by Manfred von Richthofen.
Manfred von Richthofen (4 February 1934 – 1 May 2014) was a German hockey player and coach.
 He was also an honorary President of German's national Olympic federation.
 He was the nephew of World War I German pilot Manfred von Richthofen (the "Red Baron").
 His career began during the 1950s.
 He retired in 2006.
 Richthofen was born in Berlin, Germany.