Following the first clip from Bryan Singer’s X-Men: Days of Future Past, another clip is in and there are some noticeable things in the minute-long footage, explaining the mystery behind Professor X’s (James McAvoy) ability to walk again.

As you remember, Charles Xavier was left abandoned and paralyzed by his former ally, Magneto (Michael Fassbender) at the end of X-Men: First Class.

Previous clip featured Jennifer Lawrence‘s Mystique attacking Peter Dinklage‘s Bolivar Tras.

Opening in theaters on May 23, the blockbuster also stars Hugh Jackman, Nicholas Hoult, Patrick Stewart, Ian McKellen, Evan Peters, Ellen Page, Shawn Ashmore, Halle Berry, Lucas Till, Omar Sy, Adan Canto, Daniel Cudmore, and Bingbing Fan.

Check it out.

X-Men: Days of Future Past stars Hugh Jackman, James McAvoy and Michael Fassbender announce the global X-Men X-Perience! Follow along as the X-Men take over the world beginning May 10th through global premieres, live chats, and more.

The ultimate X-Men ensemble fights a war for the survival of the species across two time periods in X-MEN: DAYS OF FUTURE PAST. The beloved characters from the original “X-Men” film trilogy join forces with their younger selves from “X-Men: First Class,” in an epic battle that must change the past — to save our future.