Once Upon a Time

Once Upon a Time is a 2008 South Korean film, directed by Jeong Yong-ki and adapted from a screenplay by Cheon Seong-il. The film is a heist comedy film set in 1940s Korea, and stars Park Yong-woo and Lee Bo-young as a con artist and a jazz singer, respectively, who each plot to steal a valuable diamond from the Japanese authorities. Once Upon a Time was the first major investment by SK Telecom's film division, established late 2007, and was released in South Korea on January 30, 2008, under the company's CH Entertainment banner.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.