Question: The 71st annual Venice International Film Festival took place in Venice, Italy between 27 August to 6 September 2014, Joshua Oppenheimer, won the Silver Lion Grand Jury Prize for which 2014 internationally co-produced documentary film, about the Indonesian killings of 1965–66?
Context: "The Act of Killing" (Indonesian: "Jagal" ) is a 2012 Danish-British-Norwegian documentary film directed by Joshua Oppenheimer, Christine Cynn, and an anonymous Indonesian co-director.  The film explores the social significance of the Indonesian mass killings of 1965–1966 by focusing on the perpetrators and having them produce reenactments of the killings in the style of various Hollywood genres.  The film's primary subjects had been petty criminals, but came to lead a powerful death squad during the anti-communist purge which resulted in the death of an estimated 500,000–2,000,000 suspected communists, communist sympathisers, alleged leftists, and ethnic Chinese.  As many of the institutions and people responsible remained in power, those who carried out the killings were never held to account and continue to hold positions of power and respect.  Oppenheimer was struck by the extent to which people not only rationalised but boasted about their participation in the killings, and used the film to explore the role the events continue to play in people's lives in the present.  According to Oppenheimer, it is "about a regime in which genocide has, paradoxically, been effaced and celebrated – in order to keep the survivors terrified, the public brainwashed, and the perpetrators able to live with themselves." The Cut is a 2014 internationally co-produced drama film directed by Fatih Akın.  It was selected to compete for the Golden Lion at the 71st Venice International Film Festival.  The film is about the life and experiences of a young Armenian by the name of Nazareth Manoogian, in the light of the Armenian Genocide and its repercussions in different parts of the world. The 70th annual Venice International Film Festival took place in Venice, Italy from 28 August to 7 September 2013.  American film director William Friedkin was presented with a lifetime achievement award.  Italian film director Bernardo Bertolucci was the President of the Jury.  He was previously the President of the Jury at the 40th edition in 1983. " Gravity", directed by Alfonso Cuarón, was the opening film of the festival.  Italian actress Eva Riccobono hosted the opening and closing nights of the festival. Foxtrot (Hebrew: פוֹקְסטְרוֹט‎ ‎ ) is a 2017 Israeli drama film directed by Samuel Maoz.  It was screened in the competition section of the 74th Venice International Film Festival where it won the Grand Jury Prize Silver Lion.  It was also screened in the Special Presentations section at the 2017 Toronto International Film Festival.  It won the Ophir Award for Best Film, therefore becoming the Israeli entry for the Best Foreign Language Film at the 90th Academy Awards. A Pigeon Sat on a Branch Reflecting on Existence (Swedish: "En duva satt på en gren och funderade på tillvaron" ) is a 2014 internationally co-produced black comedy-drama film written and directed by Roy Andersson.  It is the third installment in his "Living" trilogy, following "Songs from the Second Floor" (2000) and "You, the Living" (2007).  It premiered at the 71st Venice International Film Festival where it was awarded the Golden Lion for Best Film.  It was selected as the Swedish entry for the Best Foreign Language Film at the 88th Academy Awards but it was not nominated. Kim Ki-duk ( ] ; born December 20, 1960) is a South Korean filmmaker noted for his idiosyncratic art-house cinematic works.  His films have received many distinctions in the festival circuit, making him one of the most important contemporary Asian film directors.  Major festival awards include Golden Lion at 69th Venice International Film Festival for "Pietà", Silver Lion for Best Director at 61st Venice International Film Festival for "3-Iron", Silver bear for Best Director at 54th Berlin International Film Festival for "Samaria" and Un Certain Regard prize at 2011 Cannes Film Festival for Arirang.  His most widely known feature is "Spring, Summer, Fall, Winter... and Spring" (2003), included in film critic Roger Ebert's Great Movies.  Two of his films served as official submissions for Academy award for best foreign language film as South Korean entries.  He has given scripts to several of his former assistant directors including Juhn Jai-hong ("Beautiful" and "Poongsan") and Jang Hoon ("Rough Cut"). The 71st annual Venice International Film Festival took place in Venice, Italy between 27 August to 6 September 2014.  The Swedish film "A Pigeon Sat on a Branch Reflecting on Existence" won the Golden Lion award.  Joshua Oppenheimer's "The Look of Silence" won the Silver Lion Grand Jury Prize. The Look of Silence (Indonesian: "Senyap" , "Silence") is a 2014 internationally co-produced documentary film directed by Joshua Oppenheimer about the Indonesian killings of 1965–66.  The film is a companion piece to Oppenheimer's 2012 documentary "The Act of Killing".  It was executive produced by Werner Herzog, Errol Morris, and Andre Singer.  It was nominated for the Academy Award for Best Documentary Feature at the 88th Academy Awards. Trap Street () is a 2013 Chinese film written and directed by debut Chinese film director Vivian Qu, and starring Lu Yulai and He Wenchao.  It premiered at the 2013 Venice International Film Festival, where it was nominated for the prestigious "Luigi De Laurentiis Award".  It subsequently won the "Dragons and Tigers Award - Special Mention" and second place in the Award itself at the Vancouver International Film Festival in the same year, and the "Grand Jury Prize" at the Boston Independent Film Festival in early 2014. Founded in 2012 by Scott Cross, Sean Cross, Eduardo Sanchez-Navarro Redo, Alfonso Pasquel, Juan Gallardo Thurlow, Eduardo Sanchez-Navarro Rivera Torres, and Pablo Sanchez-Navarro, the Los Cabos International Film Festival is an international film festival that takes place annually in mid-November in Los Cabos, Mexico.  The 2012 Los Cabos International Film Festival (formerly Baja International Film Festival) took place November 14–17 in Los Cabos, Mexico.  The 2013 Los Cabos International Film Festival took place November 13–16 in Cabo San Lucas, Mexico.  The 2014 Los Cabos International Film Festival took place November 12–16, 2014 in Los Cabos, Mexico.  The 2015 Los Cabos International Film Festival took place November 11–15, 2015 in Los Cabos, Mexico.  The 2016 Los Cabos International Film Festival took place November 9–13, 2016 in Los Cabos, Mexico.  The 2017 festival will take place November 8-12, 2017.  Held in one of Mexico's premier resort destinations, the festival draws attendees and filmmakers from across Mexico, the United States and around the world.
Answer: The Look of Silence