In the next we might be enemies. Or marry. In Celine Song’s gloriously romantic film Past Lives, Na-young, played by Greta Lee, and Hae-sung, played by Teo Yoo, are childhood sweethearts.

Opinions expressed by Forbes Contributors are their own. Joan Vos MacDonald is a New York-based writer who covers Korean media. Lee plays a Korean expat Na-young, now called Nora. present-day Nora ...