X-Men: Future Past - Blu-ray

The mutant heroes, the X-Men, are facing their definitive end. Their race has always been on the brink of extinction, but now the threat is more real than ever.
The only path to salvation leads through the past, to the very beginning of the chain of events that triggered the current danger. Wolverine (Hugh Jackman), whose abilities to not age and to heal at lightning speed give him an advantage over the others, is given a seemingly insane task—to travel back in time and prevent former friends from becoming mortal enemies. Only together can they face a force in the future that surpasses even their unique abilities.

Because the film takes place in two timelines, two versions of Professor Xavier (Patrick Stewart, James McAvoy) and his adversary Magneto (Ian McKellen, Michael Fassbender) appear. Only Wolverine remains the same throughout.