One week after releasing six seconds of the "X-Men: Days of Future Past" trailer, 20th Century Fox unveiled the full teaser for Bryan Singer's return to the X-Men universe. Spotted: pretty much every X-Men actor from the last 13 years, including Hugh Jackman, Halle Berry, Jennifer Lawrence, Michael Fassbender, Ian McKellen, James McAvoy and Patrick Stewart. "X-Men: Days of Future Past" is out in theaters on May 23, 2014. Check out the trailer below.
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