It comes out this week!!!! And you can buy it as a single disk dvd, Double Disk Special Edition Collectors, or as part of the 13 disk Superman set which has all the movies, plus Supergirl.
I brought it!!! The 13 disk set!!!! IT ROCKS!!!!!!!! Wasn't cheap though...you get that....still...worth it when you count up how much you'd pay for everything seperately. Plus the tin box it comes in is awesome!
Supergirl though you need to by seperately as annoyingly it's not included, but ah well, still cool anyway :)
I really want to get the Superman Returns tin edition. I bought the X-men: The Last Stand tin edition and it's awesome There's no difference in the contents of the DVD but the cover looks cool....
__________________
Amazing. Kristin Kreuk Addict.
My forum: http://twssthatswhatshesaid.proboards.com
I haven't looked at the features-but there's a 3-hour doco on how it was made and special effects and things like that-the special effects in the movie are awesome!!!!!!
I've still got a long way to go to have enough to get it... but i will. How much was it exactly? 
