Three k-drama actors have become good friends by playing three movie characters whose lifelong friendship is threatened.

Joo Ji Hoon, Ji Sung and Lee Kwang Soo grew close while working on the crime movie "Good Friends," also known as "Confession."

"As we were filming we became close and now we have a good relationship," said Ji Sung. "We all became friends and I believe viewers will see that positive energy when they watch the film."

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