Yeah there is a bunch of controversy as to the authenticity of the pic, which is probably to stir up some anticipation which is necessary way before a movie of this magnitude is even close to be released. Seems like this may not be all the way legit, anyway more info below:
via Latino Review
X-Men: First Class” centers on Charles Xavier (James McAvoy) and Erik Lehnsherr (Michael Fassbender), two friends who discover their own mutant abilities and work together with other mutants in order to stop any harmful threats.
Over time their friendship is ripped apart as Lehnsherr becomes Magneto, forming the Brotherhood of Mutants while Xavier creates his X-Men. The cast also includes Jennifer Lawrence, Nicholas Hoult, January Jones, Rose Byrne, Kevin Bacon, Zoë Kravitz and Lucas Till.
“X-Men: First Class” will be released in theaters everywhere on June 3rd.