Predestination

Ethan Hawke ("Daybreakers") is a time-travel agent tasked with preventing crimes before they happen. His new assignment has him traveling back to 1970s New York to stop the deadly attacks of a notorious terrorist. The criminal has already escaped him several times. The lives of tens of thousands of people depend on the mission. In New York, the agent meets a mysterious young man who wants to accompany him on his next time travel to settle an old score. But if you change the course of the past, you also change your future...