Instead of creating a new roar, the crew simply played the original Godzilla roar over loud speakers and recorded the audio.
Gareth Edwards, director of Godzilla (2014), attended a screening of this film. He described a feeling of jealousy while watching the film, stating, "This is what a Godzilla movie should be like."
The "Minus One" refers to the fact that Japan had already been devastated by WWII (brought down to zero), but with the emergence of Godzilla, it puts Japan into the negative. This is reflected in the film's original Japanese tagline, which translates to, "Postwar Japan. From Zero to Minus".
When asked about the differences between the American adaptations and the Japanese originals, Yamazaki stated that while the American Godzilla is only focused on being monstrous, the Japanese interpretation is both as a monster and as a god. Elaborating, Yamazaki stated, "The point of international Godzilla is that he's a really powerful monster, but a Japanese Godzilla is halfway a godlike creature in many ways. Not necessarily a religious god, but more like a Japanese god, a malevolent and destructive one."
In an article on Variety's web site dated December 10th, 2023, "Godzilla Minus One" had a box office total of $25.3 million, making it the highest-grossing Japanese live-action movie in North American history. It's also believed (though not cited in the article) that having both "Godzilla Minus One" and The Boy and the Heron (2023) as the third and first highest-grossing films on the weekend of December 9th is the first time that two Japanese movies reached the top 5 during the same weekend in North American box office history.