Given his fascination with learning Sanskrit, it's commonly believed that Oppenheimer said, "Now I am become death, the destroyer of worlds" in the wake of the Trinity test.

Broadly, though, many Japanese viewers expressed discomfort with Oppenheimer's storytelling and felt the portrayal was incomplete. “The film was only about the side that dropped the A-bomb,” Tsuyuko Iwanai, a Nagasaki resident, told NPR.

Einstein did, in fact, tell Oppenheimer to give up his security clearance and walk away from government work. That scene in the movie is based on true events.

Many users said they would boycott the movie because of what one nationalist group called a "scathing attack on Hinduism". The scene features the protagonist reciting a verse from the Bhagawad Gita, considered the holiest of Hindu scriptures, just before sexual intercourse.