XMen First Class Irish Release date brought forward February 22, 2011 The X-Men prequel will now get a May 2011 release date. The Irish release date for the X-Men prequel FIRST CLASS has been brought forward to Monday – May 30th 2011. The film will now take the unusual step of opening on a Monday, something which worked very well for the Simon Pegg/Nick Frost film last week. Their movie PAUL made £5.5 million on its opening week at Irish and UK cinemas thanks to its valentines day head start. The prequel is written by X-Men movie guru Bryan Singer and is being directed by Kick-Ass helmer Matthew Vaughn. Click here to watch the X-Men First Class trailer.