Like “Interstellar,” Chalamet’s role in the 2017 western “Hostiles” is small, but he makes the most of his relatively few scenes. Chalamet plays Privat Phillippe DeJardin, who is part of a group of soldiers tasked with transporting a Cheyenne war chief, and although Chalemet’s character has an early exit, the rest of the film is well worth watching.