In the opening act of Christopher Nolan's Oppenheimer, Florence Pugh's Jean Tatlock plays an important role. She begins a relationship with Cillian Murphy's titular character, though she's not up for public romance or a commitment. As the film progresses, Oppenheimer ends up marrying Kitty (Emily Blunt), but still maintains an affair with Jean.
Source：https://www.cbr.com/oppenheimer-sex-scenes-strange-depiction/
