In my opinion, all relationships between people have some sort of violence, and it is central.

You could say that evil is contagious in that we have this mesmerizing mentor in Uncle Charlie who comes into your life. Every person has a seed of evil inside them, and when you come across such a mesmerizing mentor, he is able to successfully turn it into a flower of evil.

I actually pay careful attention to that sort of thing - infusing humor into my films - because that's how important I think humor is.

I tend not to use the humor which would only apply to Koreans, or which would only affect the Koreans, as much as I can.

In Korea is what I do is I watch the playback of each take with all of the actors and spend a lot of time discussing each take. Also, I use the process we call auto-assembly because I storyboard my entire film right at the beginning, even before pre-production ever begins, so my vision is already laid out on the storyboard for everybody to share. It enables the on-set assembly person, as we call them, to cut together each take into a sequence. This enables a director to review the take within the context of the sequence of the scene.

Certain subjects may no longer be taboo in cinema. But there are ways to treat them that still create shock.

In my opinion, all relationships between people have some sort of violence, and it is central.