In order to get the costumes for Osage Nation characters right for the film "Killers of the Flower Moon," costume designer Jacqueline West turned to traditional research methods, but also partnered with members of the Osage tribe to ensure that all of the characters' attire was period-accurate. West joins us to discuss her work on the film, which earned her an Oscar nomination, as part of our ongoing series The Big Picture, spotlighting the Oscar nominees who work behind the camera.