Other mistake: Rafe is afraid of getting his wings removed because he has dyslexia (that his teachers couldn't make sense of) and that he has had "some schooling." To be a Lieutenant as Rafe is in the movie he would need a bachelor's degree. Also this mixing up letters didn't appear on all the letters he wrote to Evelyn. Or hindered his ability to read Evelyn's letters.
Factual error: As the Japanese fleet steams toward its launch point, there is a close up of the nose of a B5N1 Kate torpedo bomber with its distinctive two-bladed propeller. Trouble is, the Kates used against Pearl Harbor were B5N2's, with a two row radial and 3-bladed prop.goofyfoot