Also featuring Emily Blunt (Katherine "Kat" Oppenheimer), Casey Affleck (Boris Pash) and Florence Pugh (Jean Tatlock), was shot on large format film stock, specifically made to fit IMAX screens.

Source: https://www.cbr.com/oppenheimer-first-look-footage-cillian-murphy/

In the middle of the scene, Tatlock pauses when a book on Oppenheimer's shelf catches her eye.

Source: https://screenrant.com/oppenheimer-sex-scene-become-death-explained/

Jean Tatlock posed for this photo while wearing her medical whites, and it’s possible that this is how she looked the last time J. Robert Oppenheimer saw her in June 1943.

Source: https://www.bostonherald.com/2023/07/20/was-the-bay-areas-jean-tatlock-oppenheimers-truest-love-or-the-first-casualty-of-his-ambition-to-build-the-atomic-bomb/

The film also stars as Katherine Oppenheimer, as Atomic Energy Commission chairman Lewis Strauss, as the Manhattan Project director Leslie Groves Jr., and as Jean Tatlock, who maintained a secret relationship with the renowned physicist.

Source: https://www.gadgets360.com/entertainment/news/oppenheimer-movie-rated-r-christopher-nolan-imax-film-print-cast-cillian-murphy-robert-downey-jr-universal-pictures-4087507