Guy Lodge Film Critic The international scope and grueling human cost of the global refugee crisis lends itself to contemporary epic filmmaking of a particularly sober stripe, as seen mostly recently in Agnieszka Holland’s “Green Border” and Matteo Garrone’s Oscar-nominated “Io Capitano.” Shorn of their ripped-from-the-headlines urgency, such stories of humans crossing vast distances and facing hostile odds in pursuit of a better life are as old as time itself. A muscular, assured debut feature from U.S.