Sentinels made their debut in 1965, X-Men #14. They were created by Bolivar Trask, a man that believed mutants, with their superior powers, would end up conquering the human race, eventually enslaving them. To prevent that he built Sentinels, giant robots with autonomy and self-consciousness. To help churn out these bad boys Bolivar built "Master Mold," a giant Sentinel-shaped factory, that manufactured Sentinels. At some point the Sentinels become too powerful and Trask has a change of heart, so he sacrifices himself to put an end to his creation.
X-Men: Days Of Future Past will be directed by Bryan Singer ("Usual Suspects"). The cast includes: Hugh Jackman, James McAvoy, Jennifer Lawrence, Patrick Stewart, Michael Fassbender,, Ian McKellen, Nicholas Hoult, Omar Sy, Peter Dinklage, Halle Berry, Adan Canto, Fan Bingbing, Anna Paquin, Evan Peters, Daniel Cudmore, Ellen Page and Booboo Stewart. Bryan Singer directs the film in theaters on May 23, 2014!