Dark Knight Returns, building blocks for Batman Vs Superman Movie?!

   With a lot of negative and confused buzz surrounding the pushed back Batman vs Superman movie slated for 2016, it's not surprising to hear more from the director and studio to try and keep things in a forward momentum...with that said, director Zack Snyder has come out recently with some new light to shed suggesting/confirming that the graphic novel of The Dark Knight Returns will be serving as a building block for the movie. Here is what he had to say...

   I personally never read the graphic novel...but I did watch the animated film based on it, and I am not sure where they are taking the blocks from in this particular story...the Batman and Superman in the novel are much older and seasoned, plus the world in the book is very very different than the one they have created in the movie. Now since Affleck has been cast and they have said they want a older Batman, I can see that much of the equation at least, but the other half is still missing. Maybe I am "reading" too much into this which is very possible and maybe they aren't taking such significant plot points so much as certain dialog or character aspects. Thoughts from you guys?