Oppenheimer’s biographers conclude that “Kitty did not give an inch. Not even [Roger] Robb [the attorney cross-examining at the hearing] could touch her. Calm and yet alert to every nuance ...

In the movie, Roger Robb, the special counsel at Oppenheimer's security clearance hearing, shouts at Oppenheimer over his contradictory positions on the hydrogen bomb. Oppenheimer did support ...