Extras delivers six
unabridged instalments of «Gotham Tonight» (47 mins., 1080i)-- which are, not unlike The Secret Diary of Laura Palmer, cute but strictly for obsessives (and they disappointingly don't include the breaking - news reports with Joker's ransom videos)-- and step galleries showcasing concept art, poster art, production stills, and Phillis Lehmer's dazzling, disturbing Joker card designs.