Comparisons to “Bad Santa” will undoubtedly be made repeatedly, but “Uncle Nick” isn’t as conventional as the inexplicably enduring Billy Bob Thornton comedy. Arriving at the holiday season with plans to dissect a dysfunctional family at their very worst, director Chris Kasick and writer Mike Demski (both veterans of “Attack of the Show”) cook up a sharp, sarcastic effort that celebrates the wonderfully deadpan delivery of star Brian Posehn, using the comedian’s elongated way with an uncomfortable moment to give “Uncle Nick” the proper amount of bitterness to help support this domestic unraveling. Hilarious and profoundly dark, the feature is an interesting counterpoint to holiday cheer, offering an engaging lump of coal for those who prefer their Christmas thoroughly soiled by bad behavior. Read the rest at Blu-ray.com