There are 2 remarkable things about the T3 fullscreen DVD:
1) you see one of the T-X's boobies during her naked walk... hmn, perhaps the reason why I imported the DVD from the USA :-D
2) there are some errors visibile in the fullscreen cut, which were not visible during the widescreen (simply because that area is cut off by the black bars). When Kate takes John's paintball gun, she takes it twice (or something like that, I don't remember it clearly). Another thing is when the T-850 starts firing his gun at the cemetery. Because of the visible area (that was normally hidden by black bars) you see that he already starts firing quickly after this turn towards the screen. But the audio of the machine gun is not starting yet with this (newly) visible area.
If you have any questions about it, feel free to ask me!
