For those who were disappointed in the movie "Oppenheimer" because it was, as advertised, about Robert Oppenheimer and not about hardware
The "advertisment" was the trailer. And the trailer implies that there is a LOT about the hardware and the project.
Add in the fact that Oppenheimer would be essentially a nobody, and a movie never made about him if it wasn't for the project. Hence why the had to sell the trailer as being about the project.
Yes, Hollywood has a bad habit of releasing trailers that are often more interesting than the movie.
However, I object strenuously to your statement that "Oppenheimer would be essentially a nobody" if it weren't for the project.
The project actually ruined him as a scientist: besides the official government proceedings against him, culminating in not being allowed to read papers he had authored, it almost stopped his publication.
According to Wikipedia "After World War II, Oppenheimer published only five scientific papers, one of them in biophysics, and none after 1950."
During the interwar years, Oppenheimer had a lot of competition in terms of scientific novelty (before going into the bomb business), and was an imperfect human being, but made many useful contributions to physics.
Prior to the project, summarizing from that Wikipedia article, he worked on many important topics in quantum mechanics and other subjects that were evolving between the wars.
A few:
The quantum theory of molecular band spectra and a method to carry out calculations of its transition probabilities.
He calculated the photoelectric effect for hydrogen and X-rays, obtaining the absorption coefficient at the K-edge.
Field emission of electrons.
The Oppenheimer-Phillips process for deuteron-induced radioactivity.
Prediction that the positron was a positive electron (not a proton).
Shortly before the war, he concentrated on astrophysics, especially gravitational collapse of neutron stars and production of black holes.
The last above is his most famous work, along with the Born-Oppenheimer approximation, which separates nuclear motion from electronic motion in the mathematical treatment of molecules, allowing nuclear motion to be neglected to simplify calculations (published in 1927, fresh out of graduate school).
Meanwhile, I seriously recommend the book I cited. I especially liked the deep-focus interior shots from the two US museums dedicated to Titan and Minuteman launch control centers.