If you watch this film you would have no idea of the huge number of military casualties form the Hiroshima naval base where the bomb inflicted 44,000 military casualties (10,000 Japanese soldiers and sailors dead, 33,000 inured). As a military target, Hiroshima was a major army base that housed the headquarters of the Japanese 5th Division and the 2nd Army Headquarters. It was also an important port in southern Japan and a communications center. Hiroshima naval base was home port to a huge number of Japanese Navy vessels, and where the bombing of pearl harbor exercises and testing took place.
You would also not know from this film that new peer reviewed work in Korea and China show that if the surrender had been delayed another four months, an additional five million persons would have died in Japanese army occupied China, Korea, Philippines, south Asia and Oceania.
And how is it we see the "daily lives" of the Hiroshima civilians without seeing that nearly 50% were directly working in war economy production, including munitions production??