X-Men: Days Of Future Past stars Richard Nixon and Vietnam

Bryan Singer reveals the Oval Office set and Richard Nixon in X-Men: Days Of Future Past

Pick up X-Men: The Ultimate Collection, containing all five films so far, on Blu-ray for £19.75 and DVD for £15.29 from Amazon.co.uk. X-Men: Days Of Future Past is due in cinemas 18 July 2014.