Watch: 'X-Men - First Class' official trailer

The latest X-Men movie, X-Men: First Class, charts the epic beginning of the X-Men saga and reveals a secret history of famous global events. Before mutants had revealed themselves to the world, and before Charles Xavier and Erik Lehnsherr took the names Professor X and Magneto, they were two young men discovering their powers for the first time. Not arch-enemies, they were instead at first the closest of friends, working together with other Mutants (some familiar, some new), to prevent nuclear Armageddon. In the process, a grave rift between them opened, which began the eternal war between Magneto's Brotherhood and Professor X's X-Men:

Directed by Matthew Vaughn the film stars James McAvoy, Michael Fassbender, Rose Byrne, January Jones, Oliver Platt, and Kevin Bacon. Watch the official trailer:

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