X-Men: Days of Future Past is a film based on Marvel Comics.
The X-Men are a fictional team of superheroes appearing in American comic books published by Marvel Comics . X-Men : Days of Future Past is a 2014 American superhero film based on the fictional X-Men characters that appear in Marvel Comics . Directed by Bryan Singer , it is the seventh installment of the X-Men film series and acts as a sequel to both 2006 's X-Men : The Last Stand and 2011 's X-Men : First Class . The story , inspired by the 1981 Uncanny X-Men storyline `` Days of Future Past '' by Chris Claremont and John Byrne , focuses on two time periods , with Wolverine traveling back in time to 1973 to change history and prevent an event that results in doom for both humans and mutants .