X-Men: Days of Future Past

In a dystopian 2023, robots called Sentinels hunt and kill mutants, as well as humans who either possess the genetic potential to have mutant offspring or try to protect them. The last surviving mutants launch one final attempt to save their species from extinction by sending Wolverine's consciousness back in time to 1973. Hiding out in a monastery in China, Kitty Pryde sends Bishop's consciousness a few days into the past to warn the others of the coming attack and ensure their survival. Averting the attack, the group retreats to a remote Chinese temple and are joined by Storm, Logan, Magneto, and the restored Charles Xavier. Xavier explains that the Sentinel program was originally conceived by Bolivar Trask, a weapons designer whom Mystique assassinated in 1973. In response, the government approved his program and captured, tortured, and experimented on her, using her DNA to create Sentinels capable of adapting to any mutant power. Logan volunteers instead of Xavier, as his regenerative abilities would allow him to survive time travel, and he goes back to 1973 to change history and prevent an event that results in unspeakable destruction for both humans and mutants.