Comic-Con 2013: First Look at a Sentinel From ‘X-Men: Days of Future Past’
One of the most dangerous and iconic foes the X-Men have ever faced in the pages of the comic book has been the Sentinels, massive robots constructed to specifically hunt down and kill mutants. We've known for some time now that these horrifying 'bots would play a major role in 'X-Men: Days of Future Past,' but thanks to the Comic-Con 2013 show floor, we now know what they'll look like.