A dysfunctional family's heart of darkness is laid bare in the grimly humorous and then just plain grim meller "Members of the Funeral." Feature bow by Baek Seung-bin heralds a dark wit and sleek intelligence guided by a creatively secure humility. A standout from the substandard HD fodder that generally clogs up Pusan's New Currents competish and so-called cutting-edge fests, "Funeral" is quietly riveting. A tad too restrained for midnight sidebars or commercial release, pic possesses an intensity that should secure fest berths.…