Please not this. It is a terrible story that could never happen.
I wouldn't recommend the dam busters just because of the name of the dog and the huge number of deaths caused by it.
The great escape isn't that great when it gets to the murder of the escapees.
And Bridge over the River Kwai is not, IMHO, suitable for a 10 year old.
A matter of life and death is set during the war but not actually about it, I think it would be fine for a 10 year old.
They drove all night - basically women in the army driving all night, it is a propaganda film.
Operation Mincemeat would be good but there are a couple of explicit sex scenes so you would have to edit it. I wish they would do films like they used to, where they were cut to be shown on airlines.
Hidden in Silence a polish teenager rescues Jews from the Ghetto, it is based on a true story.
There is a more modern version of the story called The Light in Hidden Places.
The six triple 8 - The only coloured (using that word in it historical context) women's army Corp to serve in Europe.