Another technical problem accurately represented throughout the film was plutonium production. This can be analyzed through the occurrence of discussions of fizzle, ingenuity, engineering breakthroughs and setbacks, and once again, the determination to succeed. The film focused on the great cost it took to obtain the plutonium, as well as the overall process of breeding plutonium. Enrico Fermi, a main scientist involved in the Manhattan Project, was the one who discovered that plutonium was the element necessary to produce a spontaneous fission reaction. His contributions to the Manhattan Project were not included in the film as much as they were recognized in real-life.