by Gregory Imler - E! Online





The wait is over!

The official trailer for X-Men: First Class, starring James McAvoy, January Jones, Rose Byrne and a handful of others, is finally here, and it's our first glimpse at how the mutants we know and love came to be.

We're reminded of their humble beginnings. Before Professor X (McAvoy) became Professor X, he was just Charles. Before Magneto (Michael Fassbender) was Magneto, he was just Erik.

But as they begin to embody their powers (we have to say, it's great watching Magneto relish in his abilities), their priorities shift. With President Kennedy's speech about the cost of freedom drawing a parallel with the mutants' own struggle for equality, we see the pressure push two one-time friends apart as they try to make sense of chaos around them.

X-Men: First Class hits theaters June 3.