What Western Movie Is This?!

i believe it came out in 2006 or 07, possibly 08!. But I believe 06 or 07!. Anyways, I saw it a few days ago, but forgot the title!. I watched a preview online and it has someone famous but I dont know who!. The plot revolves around a man who brings a dead man to town (very small town) for a reward, but then the town turns on him or something and tries to kill him!!? in the preview it shows the actor who is dead, with flies all over his face!.!.!. thank you!.Www@Enter-QA@Com

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