In case you weren’t aware, Yunjin Kim, who plays Sun on ABC’s “Lost,” is a pretty major film star in her native South Korea. Her latest film, “Hamoni” (Harmony) came out there Jan. 28, and while one probably shouldn’t draw too many parallels with “Lost,” it does features Kim a woman trying to make the best of a confining situation: She joins a women’s choir while in prison. And there’s a baby involved …

Here’s a trailer for the film, which was No. 2 behind “Avatar” at the South Korean box office in its second week and grossed nearly 20 billion Korean won (more than $17 million) in its first month: