Last night, Empire finally showed off the last cover of the Future Sentinel (cross between the Destroyer from Thor and the Alien from The Day the Earth Stood Still) which has send the comic fanboy world into a frenzy. Production designer John Mayhre had this to say about the new design of the Future Sentinel which is pretty cool.
"They’re biomechanical weapons. We had to come up with what would be the ultimate version that could actually, in principle, stop the X-Men. We started with this idea that they were almost made up of magnetic plates slapped over one another, imagining that the plates could contract or grow, so the Sentinel can be skinny to get through a small space or the plates can open up to become a bigger shape. So they have become virtually unstoppable."
X-Men Days of Future Past hits May 23rd 2014