Question: What year was the documentary film that was directed by Marcel Ophuls and that featured the German military leader who was the last commander of "Jagdgeschwader" premiered?

Context articles: Beaufort (film)
Victor Franke
Albrecht, Duke of Württemberg
The Memory of Justice
Marcel Ophüls
Hermann Göring
Carl Heinrich Zimmermann
Lothar Engelhardt
Hans-Georg von Seidel
Ronglu

Beaufort (Hebrew: בופור‎ ‎ ) is a 2007 Israeli war film.
 The film was directed by Joseph Cedar and was co-written by Cedar and Ron Leshem, based on Leshem's novel of the same name.
 The film is about an IDF unit stationed at the isolated mountaintop Beaufort post in Southern Lebanon during the South Lebanon conflict, and their commander, Liraz Librati, who was the last commander of the Beaufort castle before the Israeli withdrawal in 2000.
Erich Victor Carl August Franke (21 July 1865 – 7 August 1936) was a German military officer and last commander of the "Schutztruppe" in German South West Africa.
Albrecht, Duke of Württemberg or "Albrecht Herzog von Württemberg" ("Albrecht Maria Alexander Philipp Joseph von Württemberg", 23 December 1865 – 31 October 1939) was an important German military leader in World War I and head of the Royal House of Württemberg from 1921 to his death.
The Memory of Justice is a 1976 documentary film directed by Marcel Ophüls.
 It explores the subject of atrocities committed in wartime and features Joan Baez, Karl Dönitz, Hermann Göring, Hans-Joachim Kulenkampff, Yehudi Menuhin, Albert Speer and Telford Taylor.
Marcel Ophuls (] ; born 1 November 1927) is a documentary film maker and former actor, best known for his films "The Sorrow and the Pity" and "".
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.
Carl Heinrich Zimmermann (Frankenau, 7 September 1864 – Hanau, 13 January 1949), was a German military officer and last commander of the "Schutztruppe" in German Kamerun.
Lothar Engelhardt (July 5, 1939 – March 2010) was a graduated military scientist, Major General, and the last Commander in Chief of the National People's Army in the former German Democratic Republic.
Hans-Georg von Seidel (11 November 1891 – 10 November 1955) was a German military leader who served in the German Army during World War I and in the "Luftwaffe" (German Air Force) during World War II.
 Seidel was promoted to the rank of "General der Flieger" (General of the Air).
Ronglu (6 April 1836 – 11 April 1903), courtesy name Zhonghua, was a Manchu political and military leader of the late Qing dynasty.
 He was born in the Guwalgiya clan, which was under the Plain White Banner of the Manchu Eight Banners.
 Deeply favoured by Empress Dowager Cixi, he served in a number of important civil and military positions in the Qing government, including the Zongli Yamen, Grand Council, Grand Secretary, Viceroy of Zhili, Beiyang Trade Minister, Secretary of Defence, Nine Gates Infantry Commander, and Wuwei Corps Commander.
 He was also the maternal grandfather of Puyi, the last Emperor of China and the Qing dynasty, through his daughter Youlan.