Oppenheimer was released in Japan by the independent distributor Bitters End. This release was notable due to the film's delayed and controversial reception in Japan.

Oppenheimer was theatrically released in the United States and the United Kingdom by Universal Pictures. This marked the film's wide release and was notable for its concurrent release with the film Barbie, leading to the 'Barbenheimer' phenomenon.

The American premiere of Oppenheimer occurred at AMC Lincoln Square 13 in New York City. This was a key event in the film's U.S. release.

The British premiere of Oppenheimer took place at Odeon Luxe Leicester Square in London. This event was part of the film's international rollout.

Oppenheimer had its world premiere at Le Grand Rex in Paris. This marked the first public screening of the film, which is a significant event in the film's release cycle.

The scene where Oppenheimer's security clearance was revoked was shot on this day in Alhambra, California. This was the production's last day in Alhambra and a significant scene in the film.

Interior shooting in Los Alamos began. This was part of the ongoing filming process, focusing on interior scenes in historic locations.

Principal photography for Oppenheimer began at Ghost Ranch in New Mexico. This marked the start of the filming process for the movie.