On the heels of the super short teaser Bryan Singer shared via Instagram, the full blown, official X-Men: Days of Future Past trailer has been released. What are you waiting for? Watch it. Watch it now!

Aw, man! I’ve got chills!

Days of Future Past has the potential to be the most epic X-Men film ever. Or, the biggest misstep in the franchise’s history. Which will it be? Gotta wait until May 23rd, 2014 to find out!

Directed by Bryan Singer, X-Men: Days of Future Past stars… EVERYBODY. No, really. It stars Patrick Stewart, Ian McKellen, Hugh Jackman, James McAvoy, Michael Fassbender, Halle Berry, Anna Paquin, Ellen Page, Shawn Ashmore, Jennifer Lawrence, Nicholas Hoult, Fan Bingbing, Booboo Stewart, Evan Peters, Lucas Till, Daniel Cudmore, and Omar Sy.

Who did you spot in this Days of Future Past trailer? Any hints for how this whole X-Men crossover is going to shake out? Let us know in the comments below!