Question: What 2015 South Korean film did Bae Seong-woo star in that premiered at the 2015 Cannes Film Festival?

Context paragraphs:
The Swindlers (2017 film): The Swindlers is an upcoming South Korean crime drama film directed by Jang Chang-won.  The film stars Hyun Bin, Yoo Ji-tae, Bae Seong-woo, Park Sung-woong, Nana and Ahn Se-ha.

Bae Seong-woo: Bae Seong-woo (born November 21, 1972) is a South Korean actor.  He starred in film such as "My Love, My Bride" (2014), "Office" (2015), "" (2015) and "Inside Men" (2015).

László Nemes: László Nemes (born Nemes Jeles László; ] ; 18 February 1977) is a Hungarian film director and screenwriter.  His 2015 debut feature film, "Son of Saul," was screened in the main competition at the 2015 Cannes Film Festival, where it won the Grand Prix.  He is the first Hungarian director whose film has won a Golden Globe for Best Foreign Language Film.  "Son of Saul" is the second Hungarian film to win the Academy Award for Best Foreign Language Film.  In 2016, Nemes was a member of the main competition jury of the 2016 Cannes Film Festival.

Office (2015 South Korean film): Office (오피스 ) is 2015 South Korean slasher-thriller film directed by Hong Won-chan and starring Go Ah-sung and Park Sung-woong.  It is about a detective trying to figure out why a mild-mannered man has killed his family and is targeting his co-workers.  The film premiered at the Midnight Screenings section of the 2015 Cannes Film Festival.

Coin Locker Girl: Coin Locker Girl (; lit.  Chinatown) is a 2015 South Korean film written and directed by Han Jun-hee, starring Kim Hye-soo, Kim Go-eun, Uhm Tae-goo with Park Bo-gum and Go Kyung-pyo.  It was selected to screen in the International Critics' Week section of the 2015 Cannes Film Festival.

Madonna (2015 film): Madonna (Korean: 마돈나 ) is a 2015 South Korean mystery-drama film written and directed by Shin Su-won.  It was screened in the Un Certain Regard section of the 2015 Cannes Film Festival.  Kwon So-hyun won Best New Actress at the 35th Korean Association of Film Critics Awards.

The Way Out (2015 film): The Way Out (Russian: Выход ) (German: "Der Auftritt" ) is a German-Russian 2015 short film directed, written and produced by Mikhail Uchitelev.  The film has been premiered at the 2015 Cannes Film Festival (Short Film Corner), has been awarded Grand Prix at the International Festival "Reflections of Spirit" (Erlangen, Germany) and the Award for the Best Supporting Actor at The Short Film Awards International Festival in New-York, for the Best Actress at the Blow-up International Film Festival and officially selected at the Roving Eye International Film Festival (partner of the Oscar-qualifying Flickers’ Rhode Island International Film Festival).

Michel Franco: Michel Franco (born 1979) is a Mexican film director and producer.  His film "After Lucia" won the Prize Un Certain Regard at the 2012 Cannes Film Festival.  His 2015 film "Chronic" was selected to compete for the Palme d'Or at the 2015 Cannes Film Festival.  At Cannes, Franco won the award for Best Screenplay.  His 2017 film "April's Daughter" has been selected to compete in the Un Certain Regard section at the 2017 Cannes Film Festival.

Quiet Riot - Well Now You're Here: Quiet Riot: Well Now You're Here, There's No Way Back is a 2015 documentary film about Los Angeles-based heavy metal and hair metal band Quiet Riot.  The film was directed by former actress Regina Russell Banali.  It premiered January 29, 2015, on Showtime and was screened out of competition at the 2015 Cannes Film Festival.  The film had its festival premier at the 2014 Newport Beach Film Festival and won the Festival Honors award for "Outstanding Achievement in Filmmaking" in the music category.  It also won "Best Music Documentary" from the Oregon Independent Film Festival, and was an official selection of The Hollywood Film Festival, the Carmel International Film Festival, Indie Memphis Film Festival, St. Louis International Film Festival, and Big Sky Documentary Film Festival.

Why Has Bodhi-Dharma Left for the East?: Why Has Bodhi-Dharma Left for the East?  (달마가 동쪽으로 간 까닭은?  - "Dalmaga dongjjok-euro gan ggadakeun?")  (1989) is an award-winning South Korean film written, produced and directed by Bae Yong-kyun, a professor at Dongguk University in Seoul.  Known principally as a painter, Bae spent seven years making this film with one camera and editing it by hand.  The film was screened in the Un Certain Regard section at the 1989 Cannes Film Festival.

Supporting paragraphs: Bae Seong-woo Office (2015 South Korean film)
Answer: Office