What is this movie supposed to be?

Rating: 4/10 (5 June 2013)

Just for a moment imagine this movie being made by an unknown director. It would be savaged by the critics for its low quality, insulting story and lackluster performances. I don't know what this movie was supposed to be.
The apparent possibilities are: Spaghetti western, Blaxploitation film, Gore fest, spoof,.... In the end it was some of all. But the acting, except for the good Dr. Schultz, is miserable. Everyone is a caricature. If I was black, I'd be offended. Foxx doesn't act, he just looks mean.
The settings are all wrong....I mean snow-capped peaks in the South? The firearms are not period correct. You can even see the Italian proof marks on them. No effort was made to put together anything other than a 3 hour endurance test for your bladder. It's cheesy. It's lame. It is predictable.
Think of this as a mediocre pizza. It looks like fun. It has lots of colors. I even looks like it is consumable. But in the end it is just another rotten pizza.
Yes, I understand, the director or producer of this knows that everything is wrong. I guess that is part of its so-called charm. But don't call this great cinema.