I have nothing against diamonds, or rubies or emeralds or sapphires. I do object when their acquisition is complicit in the debasement of children or the destruction of a country.
There is no reason why challenging themes and engaging stories have to be mutually exclusive - in fact, each can fuel the other. As a filmmaker, I want to entertain people first and foremost. If out of that comes a greater awareness and understanding of a time or a circumstance, then the hope is that change can happen.
I look at modern life and I see people not taking responsibility for their lives. The temptation to blame, to find external causes to one's own issues is something that is particularly modern. I know that personally I find that sense of responsibility interesting.
Samurai culture did exist really, for hundreds of years and the notion of people trying to create some sort of a moral code, the idea that there existed certain behaviors that could be celebrated and that could be operative in a life.