X-MEN: FIRST CLASS Promo Images Featuring Michael Fassbender, James McAvoy & January Jones

Twentieth Century Fox takes fans back to where it all started with First Class, telling the origin of the relationship between Professor X and Magneto, scheduled for release this July.

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 Lensherr took the names Professor X and Magneto, they were two young men discovering their powers for the first time. Not archenemies, they were instead at first the closest of friends, working together with other Mutants (some familiar, some new), to stop 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, Jones, Kevin Bacon, Nicholas Hoult, Jennifer Lawrence, Caleb Landry Jones, Lucas Till, Edi Gathegi, Jason Flemyng, Oliver Platt, Morgan Lily, Zoe Kravitz, Bill Bilner. X-Men: First Class opens in theaters on June 3rd, 2011.