July 10 (UPI) -- Universal Pictures released a behind the scenes feature on Oppenheimer Monday. Director Christopher Nolan explains a troubling detail about the film's historic basis, and highlights his crew's accomplishments.
Nolan co-wrote, with Kai Bird and Martin Sherwin, the story of the Manhattan Project. Nolan says his longtime interest in J. Robert Oppenheimer (Cillian Murphy) solidified in a story when he learned one specific detail of the atom bomb test.