When questioned about whether he saw Oppenheimer‘s R-rating coming, Nolan replied, “Yeah, definitely”. He explained that they “definitely anticipated” the movie receiving the certification.

The Nolan universe is known for being largely “sexless”, and the director makes up for lost time, putting Oppenheimer firmly in R-rated territory.

Nuclear-weapons physicist Greg Spriggs rates "Oppenheimer" for realism ... in Los Alamos and the subsequent Trinity test was in the movie, starring Cillian Murphy, Matt Damon, Emily Blunt ...