X-Men: Days of Future Past is an upcoming superhero movie based on characters created by Stan Lee in Marvel Comics. It is the seventh installment of X-Men series. It is a sequel to X-Men: The Last Stand (2006) and X-Men: First Class (2011) as well as a follow-up to The Wolverine (2013).
The story follows X-Men fighting a war for the survival of the species across two time periods in X-Men: Days of Future Past. The characters from the original X-Men film trilogy join forces with their younger selves from X-Men: First Class in a battle that must change the past – to save their future.
X-Men: Days of Future Past is scheduled to be released in 2D and 3D theaters on May 21, 2014, in various international markets and on May 23, 2014 in the United States.