20th Century Fox picked an interesting time to release the first teaser for X-Men: Days of Future Past. With all eyes on the Captain America: The Winter Soldier trailer, X-Men Movies released a teaser trailer. on Instagram for the full trailer. Along with the teaser trailer, Fox revealed, "Watch this exclusive X-Men: Days of Future Past sneak peek & stay tuned for the world premiere of the full trailer on Oct 29: https://bit.ly/xmenyoutube Join director Bryan Singer for a Twitter chat on Oct 28 #AskSinger." X-Men: Days Of Future Past stars James McAvoy, Michael Fassbender, Patrick Stewart, Ian McKellen, Hugh Jackman, Jennifer Lawrence, Nicholas Hoult, Ellen Page, Halle Berry, Peter Dinklage, Anna Paquin and Shawn Ashmore. X-Men: Days Of Future Past is scheduled to be released in movie theaters on May 23, 2014.