Actress Han Ji-min uploaded a photo to her official Instagram account Wednesday taken with the cast of her film “Secret Agent.”

The cast members celebrated actor Song Kang-ho’s birthday, including actor Gong Yoo and Shin Seong-rok.

Han also left a short happy birthday message to Song with a post.

They flashed different poses for pictures, such as a V-sign and a thumbs up.

The film started filming in October 2015 and will premiere on the first half of this year.

It is set in the 1930s, when Japan controlled Korea, and portrays resistance fighters who use violent means to achieve Korean independence.

This is the fourth time that director Kim Ji-woon has worked with Song.

They collaborated in the film “The Quiet Family,” (1998) “The Foul King” (2000) and “The Good, The Bad, The Weird.” (2008)

By Kim Soo-hyang (shkim@heraldcorp.com)