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Oppenheimer is a 2023 epic biographical thriller film written, produced, and directed
by Christopher Nolan. It is based on the 2005 biography American Prometheus by Kai
Bird and Martin J. Sherwin about J. Robert Oppenheimer, the theoretical physicist who helped
develop the first nuclear weapons on the Manhattan Project. The film stars Cillian Murphy as the
title character, with a supporting ensemble cast including Emily Blunt, Matt Damon, Robert
Downey Jr., Florence Pugh, Josh Hartnett, Casey Affleck, Rami Malek, and Kenneth Branagh.
The film was announced in September 2021 when Universal Pictures won the bidding war.
Filming began in late February 2022 and wrapped that May. Cinematographer Hoyte van
Hoytema shot the film in a combination of IMAX 65mm and 65mm large-format film—including,
for the first time, sections in IMAX black-and-white analog photography. As on his previous
works, Nolan utilized extensive practical effects and minimal computer-generated imagery.
Oppenheimer premiered at Le Grand Rex in Paris on July 11, 2023 and is scheduled for release
in the United Kingdom and United States on July 21, 2023, by Universal Pictures. It is Nolan's
first film not to be distributed by Warner Bros. Pictures domestically or internationally
since Memento (2000), as well as his first film to receive an R rating since Insomnia (2002).