The 2010 film , X-Men : Days of Future Past is based on a DC Comics´ story .
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 .
X-Men-COLON- Days of Future Past