“Fatman” is a Christmas movie that fits the tone of 2020, offering a frequently grim take on the magic of Santa Claus, his north pole operation, and those who feel spurned by the spirit of holiday giving. Writer/directors Eshom and Ian Nelms (“Small Town Crime”) create a dark vision of seasonal concern, but they don’t suffocate the viewer in the process, preserving bits of humor and heart as they construct a different take on holiday figures and iconography. Mel Gibson is hired to portray the titular character, and it’s appropriate casting for the production, which feeds off the star’s sandpaper-like screen presence, giving the helmers permission to take “Fatman” wherever they need to go, keeping things unpredictable and menacing. The feature has its shortcomings, but it’s an appropriate fit for today’s world, mixing simmering rage with a dollop of optimism. Read the rest at Blu-ray.com