Bryan Singer stands next to a giant Sentinel on the set of X-Men: Days of Future Past. The Sentinels are the reason the X-Men of old and new are joining forces.
A photo of one of the Sentinels made by Trask Industries in X-Men: Days of Future Past. Ian McKellen, Patrick Stewart, Michael Fassbender and James McAvoy all star in the sequel to X-Men: First Class.