Question: 24 Frames was posthumously showed at the film festival that took place during which time frame?

full_context: Document 1: Abbas Kiarostami: Abbas Kiarostami (Persian: عباس کیارستمی‎ ‎ ; 22 June 1940 – 4 July 2016) was an Iranian film director, screenwriter, photographer and film producer. An active film-maker from 1970, Kiarostami had been involved in over forty films, including shorts and documentaries. Kiarostami attained critical acclaim for directing the "Koker trilogy" (1987–94), "Close-Up" (1990), "Taste of Cherry" (1997) – which was awarded the Palme d'Or at the Cannes Film Festival that year – and "The Wind Will Carry Us" (1999). In his later works, "Certified Copy" (2010) and "Like Someone in Love" (2012), he filmed for the first time outside Iran: in Italy and Japan, respectively.
Document 2: 67th Berlin International Film Festival: The 67th annual Berlin International Film Festival was held from 9 February to 18 February 2017 with Dutch filmmaker Paul Verhoeven as President of the Jury. "Django", directed by Etienne Comar, opened the festival. The Golden Bear was awarded to the Hungarian film "On Body and Soul" directed by Ildikó Enyedi, which also served as closing film of the festival.
Document 3: Roads of Kiarostami: Roads of Kiarostami is a 2005 Iranian documentary film directed by Abbas Kiarostami.
Document 4: 2007 Cannes Film Festival: The 60th Cannes Film Festival ran from 16 to 27 May 2007. The President of the Jury was British director Stephen Frears. Twenty two films from twelve countries were selected to compete for the Palme d'Or. The awards were announced on 26 May. "4 Months, 3 Weeks and 2 Days", directed by Cristian Mungiu won the Palme d'Or.
Document 5: Koker trilogy: The Koker trilogy is a series of three films directed by acclaimed Iranian filmmaker Abbas Kiarostami: "Where Is the Friend's Home?" (1987), "And Life Goes On" (a.k.a. "Life and Nothing More", 1992) and "Through the Olive Trees" (1994). The designation was made by film theorists and critics, rather than by Kiarostami himself, who resists the designation and notes that the films are connected only by the accident of place (referring to the fact that Koker is the name of a northern Iranian village). He has suggested that it might be more appropriate to consider the latter two titles plus "Taste of Cherry" (1997) as a trilogy, since these are connected by the theme of life's preciousness.
Document 6: 24 Frames (film): 24 Frames is a 2017 Iranian experimental film directed by Abbas Kiarostami. It was his final feature film before his death in July 2016. It was posthumously shown in the 70th Anniversary Events section at the 2017 Cannes Film Festival.
Document 7: Lessons with Kiarostami: Lessons with Kiarostami (Persian: سرکلاس با کیارستمی‎ ‎ , transit. "Sare Kelas ba Kiarostami") is a book written by Abbas Kiarostami, edited by Paul Cronin and with a foreword by acclaimed British director Mike Leigh. The book was published, simultaneously in English and Persian, shortly before Kiarostami's death. Drawn from Cronin's notes made at a series of workshops around the world, as led by Kiarostami, the text is written in the first person, from Kiarostami's point of view, and details his working methods and approach to poetic cinema. Lessons with Kiarostami was released alongside various volumes of English translations of Kiarostami's poetry. A Simplified Chinese translation of the book was published in 2017.
Document 8: 2017 Cannes Film Festival: The 70th Cannes Film Festival took place from 17 to 28 May 2017, in Cannes, France. Spanish film director and screenwriter Pedro Almodóvar was the President of the Jury for the festival and Italian actress Monica Bellucci hosted the opening and closing ceremonies. "Ismael's Ghosts", directed by French director Arnaud Desplechin, was the opening film for the festival.
Document 9: 73rd Venice International Film Festival: The 73rd annual Venice International Film Festival was held from 31 August to 10 September 2016. English director Sam Mendes was the President of the Jury for the main competition. The opening night film was Damien Chazelle's musical "La La Land". The Golden Lion was awarded to Lav Diaz's film "The Woman Who Left".
Document 10: The Experience (film): The Experience (Persian: تجربه‎ ‎ , "Tajrobe") is a 1973 Iranian feature film directed by Abbas Kiarostami. It is Kiarostami's directorial debut.
Document 11: Abbas Kiarostami: A Report: Abbas Kiarostami: A Report is a 2013 documentary film about the Iranian filmmaker Abbas Kiarostami, produced and directed by Bahman Maghsoudlou. Out of the documentaries Maghsoudlou has made, this is the first of feature length.
Document 12: Ismael's Ghosts: Ismael's Ghosts (French: Les Fantômes d'Ismaël ) is a 2017 French drama film directed by Arnaud Desplechin, starring Mathieu Amalric, Marion Cotillard, Charlotte Gainsbourg and Louis Garrel. The film follows a filmmaker whose life is sent into a tailspin, just as he is about to start shooting a new film, by the return of his wife, who disappeared 20 years ago and whom he thought dead. "Ismael's Ghosts" premiered at the 2017 Cannes Film Festival as the opening film.
Document 13: Bahman Kiarostami: Bahman Kiarostami (Persian: بهمن کیارستمی‎ ‎ ) (born 11 August 1978 in Tehran) is an Iranian film director, cinematographer, film editor and film producer. He is the son of the late critically acclaimed Abbas Kiarostami. The main theme in Kiarostami's films are art and music.
Document 14: 2014 Cannes Film Festival: The 67th Cannes Film Festival was held from 14 to 25 May 2014. New Zealand film director Jane Campion was the head of the jury for the main competition section. The Palme d'Or was awarded to the Turkish film "Winter Sleep" directed by Nuri Bilge Ceylan.
Document 15: 70th Venice International Film Festival: 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.
ground_truth: 17 to 28 May 2017