I really do love this movie and www.dvdtimes.co.uk provides a very good review.. so I thought you maybe want to check this out:

http://www.dvdtimes.co.uk/content.php?contentid=62300

I got the Special Edition Set, which comes with a second disc with lots of making of, mostly about the sets and design and effects, which have no subtitles though, but are easy to understand just by looking at them
Also included an extra CD-Rom with all the website contents, a Design-Book and a very cool bonus: a 3-D Theater with stills from the movie which are in impressive-working 3-D... it's some kind of toy from the 50ies, so it's a nice bonus to be puit into this set... the whole set itself is very nicely designed and of high wuality and overall not that muchmore expensive then the single disc.

Highly recommended for a long winter night with your girlfriend and if you are interested in Japan and History...
the best feel-good-movie Ive seen in a long time...
seriously!