Curtiss Hawk IIIs vs Ki-27s... The Hawks would easily out-turn the Nates, which forced the Japanese to adopt hit and run tactics with their faster Ki-27s, not unlike those used by the AVG fighting the Ki-27s in Tomahawks and few years later.
It's a rather poorly made film, but what other films depict the war between China and Japan? The Chinese were poorly equipped and often poorly led, but they didn't lack for courage.