HBO has released an official trailer for its Deadwood movie, and what a wealth of reunions it is! Twelve years later and things feel like they just ended yesterday, as Al Swearengen (Ian McShane) and Seth Bullock (Timothy Olyphant) look to make a final stand against the corrupt George Hearst (Gerald McRaney), whose presence originally ended the series on such a nihilistic note. There isn't much more in the trailer that gives us a sense of the plot other than seeing all of our favorite characters coming together to make a claim for their way of life in the …