'X-Men: Days Of Future Past' To Be Set Mostly In The '70s

The sequel-prequel X-Men: Days of Future Past will most likely be set in the 1970s for the majority of the film -- if you believe this casting call, that is.  The casting call went out seeking participants of ages 12-75 and of all ethnicities.  Filming is set for April 2013 through August 2013.

X-Men: Days of Future Past is set for a July 18, 2014 release.

Source: Comic Book Movie