X-Men Days of Future Past X-Men Days of Future Past

"A full day of X-Men surprises is just around the corner," says the Instagram page for Days of Future Past, the next film in the X-Men franchise. That day will be Monday, but before then, a new teaser has been released that features some never-before-seen footage.

Watch the first X-Men: Days of Future Past trailer

Based on the story line from the comics of the same name, the film follows Wolverine (Hugh Jackman) as he goes back in time to prevent a war against mutants. Professor Xavier (Patrick Stewart) and Magneto (Ian McKellen) are forced to team up again to help avert the crisis, which is the brainchild of Bolivar Trask (Peter Dinklage) and his mutant-hunting sentinels.

Split between the 1960s and present day, the film will feature both generations of mutants, including Jennifer Lawrence as Mystique, Halle Berry as Storm and Ellen Page as Kitty Pride. Check out some of the new scenes below:

X-Men: Days of Future Past hits theaters May 23.