SEE ALSO: Joo Won cast in movie 'C'est Si Bon' + Han Hyo Joo is reviewing the offer

A film insider told TV Report, "Jang Hyun Sung has decided to star in 'C'est Si Bon'... Jang Hyun Sung is set to play the role of grown-up Lee Jang Hee. [Jang Hyun Sung] and Jin Goo will both play the same person."

Jang Hyun Sung shared that he's tuning up his guitar skills for the movie in a recent interview with Ilgan Sports, "I started playing the guitar again for the filming of the movie 'C'est Si Bon'... I first started playing the guitar during my military service. I only know how to play one instrument, and I learned how to play it again this time. It's difficult to do it again... I am learning from a teacher."

C'est Si Bon was a very well-known music cafe in Korea during the 1960s and 1970s, and the movie will center on its singers Cho Young Nam, Song Chang Sik, Yoon Hyung Joo, and Lee Jang Hee, who were unknown during their 20s. They will, of course, be adding some fiction to fact.

Jung Woo and Kim Yoon Seok will play the younger and older versions of Oh Geun Tae, and Han Hyo Joo and Kim Hee Ae will play the role of 'C'est Si Bon's muse Min Ja Young.

Kim Hyun Suk is directing, J Film is producing, and CJ Entertainment is in charge of investment and distribution. 'C'est Si Bon' is set to premiere this coming winter!