Not to be outdone by the release of the first Winter Soldier trailer (see "First 'Captain America: The Winter Soldier' Trailer"), Brian Singer has tweeted some new footage from X-Men: Days of Future Past, uploaded to Instagram, a full week before the official trailer is set to release on Tuesday, October 29th.
 
Singer has been making heavy use of Twitter  as a viral marketing device to tease X-Men fans since filming began (see "First Glimpse of Jennifer Lawrence as Mystique in 'X-Men: DOFP'," "Bryan Singer Posts 'Floating Man' Photo From 'Days of Future Past'," "Singer Dishes on 'Days of Future Past'," "Sentinel Blueprint From 'X-Men: Days of Future Past'," and "'X-Men: Days of Future Past' Wraps Shooting" for only a few).  X-Men: Days of Future Past arrives in theaters May 23, 2014.