There is a series on HBO called "Deadwood". A great show based on actual life in the town of Deadwood in the mid 1870's.

Anyways, the first season is now available on DVD. The last disc has interviews with the creator/producer and actors in the show. Topics include the making of the show, the real Deadwood, the language, and the show concept.

I caught wind of it in another forum. It was very enjoyable, and if you are a fan of the show, I recommend it.