To me this movie is about what is valuable. To one person it might be a stone; to someone else, a story in a magazine; to another, it is a child. The juxtaposition of one man obsessed with finding a valuable diamond with another man risking his life to find his son is the beating heart of this film.

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.

There is something universal in the theme of a man trying to save his family in the midst of the most terrible circumstances. It is not limited to Sierra Leone. This story could apply to any number of places where ordinary people have been caught up in political events beyond their control.

To make a great movie is such a combination of different things that need to come into play to actually make a memorable film and not have a film to fall by the wayside, to have something live on during the years, and one of those elements is the commitment the actors have to their performance.

Sometimes when we weep in the movies we weep for ourselves or for a life unlived. Or we even go to the movies because we want to resist the emotion that's there in front of us. I think there is always a catharsis that I look for and that makes the movie experience worthwhile.

It seems that almost every time a valuable natural resource is discovered in the world-whether it be diamonds, rubber, gold, oil, whatever-often what results is a tragedy for the country in which they are found. Making matters worse, the resulting riches from these resources rarely benefit the people of the country from which they come.