The listing, Terminator Salvation Digital Copy has ended.
This looks like it is for a digital download of the movie. Says you need to go to http://www.wbdigitalcopy.com/terminatorsalvation to redeem. I got this from a friend and have no other info except the following from the site.
Welcome to Warner Bros. Digital Copy Redemption
In order to process your authorization code and deliver your digital copy files for TERMINATOR SALVATION follow these instructions:
Click on the link below, "Download".
You will be prompted to download the Warner Bros. Digital Copy application.
Please choose "Save As" and save it to your Desktop or another location of your choice; you just need to remember where you saved it.
After the Digital Copy application has finished downloading, browse to the location where you saved your file and double click the application.
The Digital Copy application will guide you through the redemption and download process. (Remember to have your authorization code handy as you will need that to get your files.)
Enjoy your Digital Copy of TERMINATOR SALVATION.
Offer expires 05/17/2017