How do you justify the unjustifiable? How do you get to the point where you feel morally in the right while you slaughter unarmed men, women and children? These are the questions director Emin Alper seeks to explore in “ Salvation ,” a film notionally about the longtail fallout from a land dispute, but more elementally about how violence happens. Set in a Turkish village high in the mountains, the director’s fifth film — and his first since the 2022’s Cannes Un Certain Regard entry “Burning