After a long day of Facebook teasers, 20th Century Fox as finally unleashed its first trailer for Matthew Vaughn's X-Men: First Class. Set to arrive in theaters on June 3, First Class tells the story of how mutant leaders Charles "Professor" Xavier and Erik "Magneto" Lehnsherr became divided in their perspectives on human/mutant relations during the pivotal decade of the 1960s. Check it out after the jump.There's a lot of new footage to see, including stars

James McAvoy (Charles Xavier), Michael Fassbender (Magneto), Rose Byrne (Moira MacTaggert), January Jones (Emma Frost), Jason Flemyng (Azazel), Nicholas Hoult (Beast), Jennifer Lawrence (Mystique) and more using their perspective mutant powers. Thankfully, the trailer scarcely resembles the wonky promo image that surfaced last month.

Check out the new trailer below:

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