Goofs

There's several scenes of Japanese Mitsubishi A6M2 'Zero' fighter planes strafing Chinese civilians and Nationalist soldiers in 1937-38. The Mitsubishi A6M2 Zero fighter plane would make its combat debut over Chungking, China in August 1940. Prior to that time, the Japanese were employing imperial Army Nakajima Ki-27 fighter planes with the fixed landing gear and the imperial Navy Mitsubishi A5M, also with fixed landing gear, later codenamed, "Claude", by the Allies. The Allies later codenamed the Ki-27, "Nate".

When Hogg photographs the Japanese soldiers rounding up the Chinese civilians from the first floor window overlooking the scene, many of the shots, and the black & white prints later produced by the Japanese officer are clearly taken with a telephoto lens. Hogg's range finder 35mm camera was not fitted with a telephoto lens.

At around 00:22 into the movie when they were at a railway yard and they were attacked by Japanese fighters, the tender of the steam locomotive has a China Railway Logo (this logo has half circle on top of a rail track profile). This logo was only adopted in 1950 and is still in use today. This movie is set around 1937.

In the rail yard scene the box cars are modern steel types and the ties are a modern concrete type although the movie takes place in the 1930's.

Throughout the film the city is always referred to by English as "Nanjing". In the 1930s all English-speaking people called it "Nanking".