Omar Sy in X-Men: Days of Future Past (2014)

Shawn Ashmore and Elliot Page in X-Men: Days of Future Past (2014)

Bolivar Trask, founder of Trask Industries

May 18, 1974, Congress passed HCA (Homeland Containment Act), deploying Sentinels to the top 5 most densely populated cities in the U.S.

Since their initial deployment, Sentinels have been standard issue in the U.S. presidential security attache.

Jennifer Lawrence in X-Men: Days of Future Past (2014)

Bryan Singer and Patrick Stewart in X-Men: Days of Future Past (2014)

Nicholas Hoult and Hugh Jackman in X-Men: Days of Future Past (2014)

Adan Canto at an event for X-Men: Days of Future Past (2014)

Wesley Snipes at an event for X-Men: Days of Future Past (2014)

Booboo Stewart at an event for X-Men: Days of Future Past (2014)

Famke Janssen at an event for X-Men: Days of Future Past (2014)

Emma Roberts at an event for X-Men: Days of Future Past (2014)

Patrick Stewart at an event for X-Men: Days of Future Past (2014)

Nicholas Hoult at an event for X-Men: Days of Future Past (2014)

Omar Sy and Jennifer Lawrence at an event for X-Men: Days of Future Past (2014)

Daniel Cudmore at an event for X-Men: Days of Future Past (2014)

Bingbing Fan at an event for X-Men: Days of Future Past (2014)

Jennifer Lawrence at an event for X-Men: Days of Future Past (2014)

Ian McKellen in X-Men: Days of Future Past (2014)

Peter Dinklage in X-Men: Days of Future Past (2014)

Evan Jonigkeit in X-Men: Days of Future Past (2014)

Michael Fassbender in X-Men: Days of Future Past (2014)

Peter Dinklage and Josh Helman in X-Men: Days of Future Past (2014)

Evan Peters and Miya Shelton-Contreras in X-Men: Days of Future Past (2014)

Lucas Till in X-Men: Days of Future Past (2014)

Josh Helman in X-Men: Days of Future Past (2014)

Halle Berry in X-Men: Days of Future Past (2014)

Hugh Jackman in X-Men: Days of Future Past (2014)

James McAvoy in X-Men: Days of Future Past (2014)

Bingbing Fan and Booboo Stewart in X-Men: Days of Future Past (2014)

Bingbing Fan in X-Men: Days of Future Past (2014)

Nicholas Hoult, Hugh Jackman, and James McAvoy in X-Men: Days of Future Past (2014)

Lucas Till, Jaa Smith-Johnson, Jennifer Lawrence, Josh Helman, and Gregg Lowe in X-Men: Days of Future Past (2014)

James McAvoy and Michael Fassbender in X-Men: Days of Future Past (2014)

Halle Berry, Nicholas Hoult, Hugh Jackman, James McAvoy, Michael Fassbender, Omar Sy, Evan Peters, and Jennifer Lawrence in X-Men: Days of Future Past (2014)

Patrick Stewart, Ian McKellen, Nicholas Hoult, Hugh Jackman, James McAvoy, Michael Fassbender, Evan Peters, and Jennifer Lawrence in X-Men: Days of Future Past (2014)

Anna Paquin, Patrick Stewart, Hugh Jackman, Michael Fassbender, and Jennifer Lawrence in X-Men: Days of Future Past (2014)

Halle Berry, Patrick Stewart, Ian McKellen, Nicholas Hoult, Hugh Jackman, James McAvoy, Michael Fassbender, Omar Sy, Daniel Cudmore, and Jennifer Lawrence in X-Men: Days of Future Past (2014)

Ian McKellen and Michael Fassbender in X-Men: Days of Future Past (2014)

Halle Berry and Nicholas Hoult in X-Men: Days of Future Past (2014)

Hugh Jackman and Jennifer Lawrence in X-Men: Days of Future Past (2014)

Patrick Stewart, Ian McKellen, Hugh Jackman, James McAvoy, and Michael Fassbender in X-Men: Days of Future Past (2014)