Watch The Journey to Valkyrie Official Trailer

This making-of documentary features Singer, McQuarrie, Alexander, Cruise, Col. Stauffenberg's grandson Philipp von Schulthess, producer Gilbert Adler, editor/composer John Ottman, production designer Patrick Lumb, executive producer Chris Lee, military advisor Markus Albrecht, WWII-era Berlin resident Doris Egbring-Kahn, cinematographer Newton Thomas Sigel, government spokesman Ulrich Wilhelm, and actors Bill Nighy, Kenneth Branagh, Eddie Izzard, Thomas Kretschmann and Christian Berkel. The program examines the roots of the film, research and script development, how various participants came onboard, period details and locations.