Dark City is a great forgotten movie that really plays with your head. I never really minded the Theatrical cut, and though the Director's Cut is better it has far too many CGI tweaks and a different color timing.
Mask of the Phantasm
Disc review: http://forum.lddb.com/viewtopic.php?f=41&t=2966
In short; matted theatrical widescreen, full CAV, greatly improved sound fidelity over puny ac3.
All equals: :D