Photo: X-Men’s Giant Mark X Sentinel

Empire’s unveiling of its 25 different character covers for Bryan Singer’s upcoming “X-Men: Days of Future Past” has saved the best for last.

The last cover in the series has just been unveiled and shows the final ‘Mark X’ version of the Sentinels – the version that’s seen in the future-set scenes with the older X-Men cast.

Previously we’ve seen the ‘Mark I’ versions – the purple and transparent ones that are 2-3 times the height of a human. These versions however are considerably bigger and more dangerous.