Best Costume Design: Ellen Mirojnick for 'Oppenheimer' (The Big Picture)

Costume designer Ellen Mirojnick has been working in the industry for decades, and has now finally been nominated for an Oscar for her work in "Oppenheimer." She joins us to discuss her work bringing this period to life, finding the right hat for Oppenheimer, and more, as part of our series "The Big Picture," which spotlights Oscar-nominated creatives working behind the camera.