"Oppenheimer primarily centers on the titular scientist and his relationships, yet the film's depiction of his association with Albert Einstein diverges from reality, as Einstein harbored animosity towards Oppenheimer."

In the film, the relationship between Robert Oppenheimer (played by Cillian Murphy) and Albert Einstein (played by Tom Conti) acts as the catalyst for Oppenheimer's eventual downfall from public favor and underscores one of the film's main themes.

However, their relationship in reality was markedly different, and the conversation depicted in the film would never have taken place between them.

Christopher Nolan's film dramatizes their relationship, leveraging this altered connection to elevate the culturally iconic Einstein as one of Oppenheimer's significant characters.

While they eventually became colleagues and gained a more mutually respectful relationship, their actual connection in real life, particularly during Oppenheimer's timeline, differed significantly from its portrayal on the big screen.

"Oppenheimer emphasizes the significance of the shared scenes between Oppenheimer and Einstein, but in truth, the two did not have an amicable relationship during the period depicted in the film.

In the film, the two men are depicted as acquaintances who hold mutual respect for each other's work. This prompts Oppenheimer to seek Einstein's help in deciphering a potentially hazardous hypothesis.

In reality, Einstein was a staunch pacifist who later regretted his involvement in the Manhattan Project, which stemmed from a letter he sent to President Roosevelt.

Einstein was never invited to join the program, partly because of his openly socialist inclinations.

Oppenheimer's cooperation with the United States government also influenced Einstein's perception of his fellow scientist.