HIROSHIMA—The film “Oppenheimer,” a biopic about the man known as “the father of the atomic bomb,” opened in the United States to rave reviews in July but hasn’t been shown in Japan ...

Emily Blunt and Matt Damon. In fact, Downey Jr. described Oppenheimer as the “best film I’ve ever been in” at the London premiere on July 13, adding, “I cannot wait for you all to ...