With “Django Unchained,” writer/director Quentin Tarantino manufactures his most unsatisfying film since bursting onto the scene with 1992’s “Reservoir Dogs.” Not that “Unchained” is a disaster, far from it at times, actually, but there’s a lethargy here that’s disconcerting, blocking a lovely view of all the cinematic tributes and screen artistry that typically resides in Tarantinoland. A violent, winded take on spaghetti westerns, “Django Unchained” features all the helmer’s trademarks and casting appetites, locked into an overlong event that’s sporadically enchanting and daring, lacking the fresh pace and series of bruising confrontations that helped Tarantino’s last effort, 2009’s “Inglourious Basterds,” to soar. Read the rest at Blu-ray.com