The Beginning or the End (1947)

Brian DonlevyMaj. Gen. Leslie R. Groves Robert WalkerCol. Jeff Nixon Tom DrakeMatt Cochran Beverly TylerAnne Cochran Hume CronynDr. J. Robert Oppenheimer Audrey TotterJean O'Leary Hurd HatfieldDr. John Wyatt Joseph CalleiaDr. Enrico Fermi Godfrey TearlePresident Franklin D. Roosevelt Victor FrancenDr. Marre Richard HaydnDr. Chisholm Jonathan HaleDr. Vannevar Bush John LitelK.T. Keller Henry O'NeillGen. Thomas F. Farrell Warner AndersonCapt. William S. Parsons Ellen RossWaitress Bobby JordanRadioman on Tinian Receiving A-Bomb Message Jerry SchumacherNazi Officer

Cedric GibbonsArt Direction · Art Edwin B. WillisSet Decoration · Art F. Keogh GleasonSet Decoration · Art Frank E. MyersAssistant Director · Directing George BoemlerEditor · Editing Hans PetersArt Direction · Art Samuel MarxProducer · Production Stanley GoldsmithAssistant Director · Directing