According to Comic Book Movie on Feb. 1, "X-Men: Days of Future Past" writer and producer Simon Kinberg revealed in the latest issue of Empire magazine the kind of action sequences that will be involved. Also, the production designer discussed the kind of future Sentinel technology will be available in the film as manufactured by the fictional corporation of Trask Industries.
Kinberg talked about the third act entailing mutants attempting to ward off an invasion from Sentinels of the future. Much like the "Star Trek's" borg characters, these "energy-draining robo-bast**ds" also have the ability to adapt. The action sequence revealed, as Kinberg explains, "spaceships exploding as the surviving X-men, holed up in a monastery in Mongolia, try to stave off an assault by the future sentinels, unstoppable, energy-draining robo-bastards" and as director Bryan Singer states, "qualities of adaptability".
There will also be a sequence in the third act where there's a volley of trips back and forth through time where Magento, played by Michael Fassbender, will attempt to make a power play in the era of 1973. There will be a showdown of sorts during such an attempt to gain leverage in Erik's rise to power.
Speaking of such power, during a tour of the art department, someone caught a glimpse of some film concept art of Magneto giving rise or levitating an entire football stadium.
Production designer, John Myhre, explains the future of Trask's Sentinel beings as "biomechanical weapons" and their new ability to detect a mutant's power, adapt to it, and either deflect it or use it against the opposing force. The Sentinel's mission is to find the mutant and kill it as quickly as possible.
"X-Men: Days of Future Past' is scheduled to be released on May 23.