X-Men: Days of Future Past is the most ambitious film in the long-running franchise, and with cast members from the original trilogy returning to meet up with their younger selves from First Class, it's undoubtedly the biggest as well. While Bryan Singer has managed to bring back most of the franchise's characters, some have unfortunately fallen by the wayside in order to service the feature-length run time. Now, it appears that one actress left on the cutting room floor is getting a chance to cameo after all.