In respond to the pressures felt by Moon So-ri and Sol Kyung-gu on his film set, Lee said, "[...] I've never raised my voice, and I'm never really about giving any sort of strict direction, especially when it comes to working with the actors. When it comes to acting, I really prefer the actors to find themselves in the character, and find themselves living in the situations, themselves. I'm not someone to tell them, or to instruct them how to express whatever in a certain sort of situation." And, "[...] One of the things that I say a lot to my actors is, 'Don't act'. That be a bit flabbergasting to actors, because, 'Wait, I'm an actor, I'm supposed to act. What do you mean? What does that mean?' That can come as a confusing statement."