LONDON — Christopher Nolan has formally announced his next project, and it is not the Bond film that persistent rumors have suggested. Instead, the director is diving deeper into the territory that earned him his first Best Picture Oscar: "The Oppenheimer Code," an adaptation of Kai Bird's forthcoming sequel biography that traces the global race for atomic secrets in the decade following Hiroshima and Nagasaki.

The film, Nolan's first since Oppenheimer grossed $960 million worldwide, will focus on the period between 1945 and 1954, when the United States and the Soviet Union engaged in an escalating campaign of atomic espionage. Cillian Murphy returns as J. Robert Oppenheimer, now navigating the moral and political fallout of his creation while being surveilled by both the FBI and KGB assets. The framing device centers on the Venona Project — the US Army's secret effort to decrypt Soviet intelligence cables, which ultimately exposed a network of spies within the Manhattan Project itself.

Universal Pictures confirmed the core cast: Florence Pugh returns as Jean Tatlock (in flashback sequences), while Paul Mescal has been cast as physicist and Soviet spy Klaus Fuchs, and Saoirse Ronan as cryptographer Meredith Gardner, the woman who cracked the Venona code. Matt Damon and Robert Downey Jr. are also in negotiations to return. Nolan plans to shoot large-format IMAX film, with a significant portion of principal photography scheduled at Los Alamos National Laboratory — the first time the facility has granted that access since Oppenheimer. The reported budget is $180 million, slightly larger than Oppenheimer's, with a targeted release date of July 21, 2027 — exactly four years to the day after Barbenheimer.