Assigned to oversee the development of the atomic bomb, Gen. Leslie Groves is a stern military man determined to have the project go according to plan. He selects J. Robert Oppenheimer as the key scientist on the top-secret operation, but the two men clash fiercely on a number of issues. Despite their frequent conflicts, Groves and Oppenheimer ultimately push ahead with two bomb designs — the bigger "Fat Man" and the more streamlined "Little Boy."
| Directing | Roland Joffé | Director |
| Writing | Bruce Robinson | Screenplay |
| Writing | Roland Joffé | Screenplay |
| Camera | Vilmos Zsigmond | Director of Photography |
| Production | Nancy Foy | Casting |
| Sound | Ennio Morricone | Music |
| Production | Tony Garnett | Producer |
| Editing | Françoise Bonnot | Editor |
| Costume & Make-Up | Monty Westmore | Makeup Designer |
