Extra Features:

• Introduction by Alex Proyas (HD; 4:51) actually features Roger Ebert first, and is from 2008.
• Commentaries
• Return to Dark City (HD; 58:55) is beautifully produced new piece with a ton of fantastic interviews with key crew and cast personnel.
• I'm as Much in the Dark as You Are (HD; 19:50) is a whimsical visual essay by Josh Nelson, who offers a laundry list of noir and noir adjacent titles that may be of interest.
• Rats in a Maze (HD; 14:33) is a somewhat more sober visual essay looking at the use of mazes in the film.
• Design & Storyboards (HD; 14:08) features some amazing artwork. Disc Two - Theatrical Cut (1:40:32)
• Commentaries
• Memories of Shell Beach (HD; 43:26) is an archival making of featurette from 2008.
• The Architecture of Dreams (HD; 33:41) is a fascinating 2008 piece offering a quintet of perspectives about the film's meaning. Contributors include Alex Proyas, Lem Dobbs, Roger Ebert, Vivian Sobchak, Dana Polan and Rosemary Dinnage.
• Theatrical Trailer (HD; 2:23)
• Image Gallery (HD)