NEW YORK — Christian Bale and Robert De Niro’s new movie shines a spotlight on little-known American history — including the unsung heroes of a New York regiment who served during World War I. The Oscar-winning actors star in “Amsterdam” as military veterans with ties to the 369th New York Regiment, inspired by the real-life Harlem Hellfighters infantry of Black and Puerto Rican soldiers deployed in France. Written and directed by David O. Russell, the film presents a murder mystery that unravels into a larger conspiracy from the era. “They’re incredible stories, and what I love about David’s …
