![Matt Damon as Gen. Leslie Groves, left, and Cillian Murphy as J. Robert Oppenheimer in a scene from "Oppenheimer."](https://imagenes.elpais.com/resizer/v2/AKXRCQRNGHLQBWVQPHGCVZOSNI.jpg?auth=59f5bd575ddc5db63d32872d2ed4de4f7a56f0f51a225ed35aa7a6ade6ef4b09&width=414&height=233&smart=true)
‘Oppenheimer’: who’s who in Christopher Nolan’s biopic
The film is filled with true life characters who played an important role in Project Manhattan and in the scientist’s security hearing of 1954
The film is filled with true life characters who played an important role in Project Manhattan and in the scientist’s security hearing of 1954