, which portrayed masculine codes in the Korean military with honesty and sensitivity. And despite its rough edges due to technical limitations and a low budget, the film was a smash hit at the 2005 Busan International Film Festival and won several awards, including the NETPAC . It went on to travel to a number of festivals, winning awards and international critical acclaim.

) showed another side of men -- male hosts who serve female clients in discreet salons tucked into the affluent fashion districts of southern Seoul.

By not giving the protagonist "hero-like characteristics," Yoon said he wanted to say through the film that "it is not the special or talented people, but very ordinary people who can change the world, especially when gathered en masse."

Yoon has worked with close friend and fellow Chung-Ang University alumnus Ha Jung-woo in all four of his features.

• The Spy Gone North(2018) - director, screenwriter
• A Quiet Dream(2016) - actor
• Kundo: Age of the Rampant(2014) - director, producer
• The Berlin File(2013) - cameo
• Nameless Gangster: Rules of the Time(2012) - director, screenplay, cameo
• Nowhere to Turn(2008) - cameo
• The Moonlight of Seoul(2008) - director, screenplay
• The Unforgiven(2005) - director, screenplay, actor, producer
• Identification of a Man(short film, 2004) - director, screenplay

1. Kim, Kyu Hyun. "The Unforgiven". Koreanfilm.org. Retrieved 2012-06-24. 
2. D'Sa, Nigel (22 April 2008). "YOON's Moonlight of Seoul to open May 1st". Korean Film Biz Zone. Retrieved 2012-11-18. 
3. "K-FILM REVIEWS: 비스티 보이즈 (The Moonlight of Seoul)". Twitch Film. 30 July 2008. Retrieved 2012-11-18. 
4. Jung, Hyun-mok (17 February 2012). "Controversial director tackles corruption in Nameless Gangster". Korea JoongAng Daily. Retrieved 2012-11-18. 
5. Templin, Jacob (10 April 2012). "Nameless Gangster: The Korean Mob Film Scorsese Would Be Proud Of". Time. Retrieved 2012-11-18. 
6. "Nameless Gangster Emerging as Hottest Korean Movie of the Year". The Chosun Ilbo. 29 February 2012. Retrieved 2012-11-18. 
7. Hong, Lucia (9 April 2012). "Korean movies notch up higher number in 1Q ticket sales". 10Asia. Retrieved 2012-11-18. 
8. Jang, Sung-ran (7 August 2014). "In Kundo, Yoon aimed to entertain". Korea JoongAng Daily. Retrieved 2014-08-08. 
9. Sunwoo, Carla (13 June 2014). "Chemistry for Ha, Kang in Kundo". Korea JoongAng Daily. Retrieved 2014-06-20. 
10. Ahn, Sung-mi (20 July 2014). "Herald Review: No heroes in hero flick Kundo". The Korea Herald. Retrieved 2014-07-22.