Other mistake: At the start of the trench running scene where the soldiers charge, keep looking at the far left of the screen. You will see a small group of soldiers already running who were not in the trenches. In addition, they seem to be running without weapons.
Other mistake: At the end, it states "Clarence Dickinson became a 'Real' Admiral..." instead of Rear Admiral. (02:04:17)
Suggested correction: I just had the chance to watch the movie again. It says "Rear" not "Real" as alleged in this entry.
I watched just now and my version also shows "Real" rather than "Rear." Perhaps this was fixed only in some releases.
What version did you watch? I see "Rear." Perhaps a screenshot is needed.
Other mistake: When Rosie plays her husband with ashes on her face she touches the tablecloth but it does not get dirty.