It is available to buy the streaming copy via Google Play, Vudu, and Amazon today.
I did not check, but I suspect that it is also available via Target Ticket and other sites which allow you to buy movies via Streaming.
The following link is a preview of the movie: http://youtu.be/-6abltUcric
Otherwise is not in stores until 8-12-14
I will wait until later to rent or buy this, but I encourage Bat-fans who can not wait to buy it now.
TO BE CONTINUED