Universal has launched the teaser trailer for the biographical drama Oppenheimer [OPHMR] written and directed by Christopher Nolan [CNOLA]. Cillian Murphy [CMURP] stars as J. Robert Oppenheimer, the physicist known as the father of the atomic bomb. He led the Manhattan Project at Los Alamos Laboratory in developing the first nuclear weapons during World War II. Featuring an all-star cast that includes Robert Downey Jr., Matt Damon and Emily Blunt, Oppenheimer drops into theaters on July 21, 2023.