Even though it's not set to hit shelves until July 8th a leaked version has found it's way onto the internet.
While not the inevitable HD release, you can find a torrent here:
http://www.mininova.org/tor/1546391
or the direct download:
www.megaupload.com/?d=PFF4BP5O
Password: luelinks
If you do download please rent or pick up a copy on it's release to help support future releases from DC!