Question: Barry Keoghan appeared in a 2017 psychological horror-thriller film selected for competition at what festival?
Context: Secret Window is a 2004 American psychological horror-thriller film starring Johnny Depp and John Turturro.  It was written and directed by David Koepp, based on the novella "Secret Window, Secret Garden" by Stephen King, featuring a musical score by Philip Glass and Geoff Zanelli.  The story appeared in King's collection "Four Past Midnight".  The film was released on March 12, 2004, by Columbia Pictures; it was a moderate box office success and received mixed reviews from critics. Dunkirk is a 2017 war film written, co-produced, and directed by Christopher Nolan that portrays the Dunkirk evacuation of the Second World War.  Its ensemble cast includes Fionn Whitehead, Tom Glynn-Carney, Jack Lowden, Harry Styles, Aneurin Barnard, James D'Arcy, Barry Keoghan, Kenneth Branagh, Cillian Murphy, Mark Rylance, and Tom Hardy.  Distributed by Warner Bros.  Pictures, the film is a co-production between the United Kingdom, the United States, France, and the Netherlands. On June 16, 2015, CBS revealed the names of fourteen houseguests who would compete on the seventeenth season of the American reality television series "Big Brother".  On the second night of the season premiere, "Amazing Race" host Phil Keoghan appeared on the show as the first BB Takeover guest, introducing "Amazing Race season 26" contestants, Jackie Ibarra and Jeff Weldon, as the 15th and 16th Houseguests, respectively.  Additionally, host Julie Chen announced during the premiere that season 17 would feature a Twin Twist, where one of the contestants would compete as one houseguest with their identical twin, switching places every couple of days, unbeknownst to the other contestants.  If the twins could survive the first five evictions, they would both be allowed to compete individually in the game, which would bring the total number of contestants to 17.  During the first live eviction episode, Chen revealed that the houseguest with a twin was Liz, who had been switching places with her twin sister, Julia, since the beginning of the game.  As in previous seasons, one or more of the houseguests will be evicted each week by the votes of the remaining houseguests, until the winner is left. House Hunting (also released as "The Wrong House") is a 2012 psychological horror-thriller film that was written and directed by Eric Hurt.  The film had its world release on October 2, 2012 at the Virginia Film Festival, and received a DVD and VOD release through Phase 4 Films on March 5, 2013.  The film stars Marc Singer and Art LaFleur and follows two families that are trapped within a deserted farmhouse. The Killing of a Sacred Deer is a 2017 psychological horror-thriller film directed by Yorgos Lanthimos, from a screenplay by Lanthimos and Efthymis Filippou.  It stars Colin Farrell and Nicole Kidman.  It was selected to compete for the Palme d'Or in the main competition section at the 2017 Cannes Film Festival.  At Cannes, Lanthimos and Filippou won the Best Screenplay award.  The film is scheduled to be released in the United States on October 20, 2017, by A24, before being released in the United Kingdom on November 17, 2017, by Curzon Artificial Eye. Barry Keoghan (born 18 October 1992) is an Irish actor.  He has appeared in the films "Dunkirk" along with Mark Rylance, Tom Hardy, Cillian Murphy, Kenneth Branagh, Tom Glynn-Carney; "The Killing of a Sacred Deer" with Nicole Kidman, Colin Farrell and Alicia Silverstone; and "Trespass Against Us" with Michael Fassbender and Brendan Gleeson.  He has also played the "heartless cat killer" Wayne in the RTÉ drama "Love/Hate". The Conspiracy is a 2012 Canadian found footage psychological horror-thriller film written and directed by Christopher MacBride.  It features actors Aaron Poole, James Gilbert, Alan C. Peterson, and Julian Richings.  It tells the story of two documentary filmmakers who set out to create a film about a conspiracy theorist named "Terrance G" who disappears during the making of the film.  The two filmmakers are subsequently drawn into the world of a global syndicate whose aims and machinations are clouded in secrecy. Hide and Seek is a 2005 American psychological horror-thriller film starring Robert De Niro and Dakota Fanning.  It was directed by John Polson.  The film opened in the United States on January 28, 2005, and grossed $122 million worldwide.  Rotten Tomatoes cited praise for De Niro and Fanning for their performances, though its consensus called the film "derivative, illogical and somewhat silly".  Fanning received an MTV Movie Award for Best Frightened Performance in 2005. Cloverfield is an American anthology media franchise created and produced by J. J. Abrams consisting of three films, viral marketing websites linking the films together and a tie-in manga to the first film titled "Cloverfield/Kishin" (2008). " Cloverfield" is a found footage monster horror film released on January 18, 2008, which was well-received by critics. " 10 Cloverfield Lane", a spiritual sequel to the first film, is a psychological horror-thriller film that was released on March 11, 2016, and like its predecessor received positive reviews from critics.  A third film in the series, "God Particle", is currently scheduled for a 2018 release. Berlin Syndrome is a 2017 Australian psychological horror-thriller film directed by Cate Shortland, and written by Shaun Grant, based upon the novel of the same name by Melanie Joosten.  It stars Teresa Palmer and Max Riemelt.
Answer: Cannes Film Festival