I recently watched the Dunkirk movie and while it was exciting, Christopher Nolan did choose to write a fictional account of the events. Some of the scenes and props were also inaccurate. Near the end there is a scene of two soldiers on a train with blue seats and windows that would not have been in service in England until the 1960s.
Regardless, it was spectacular and showed the enormity of the undertaking and the bravery of British boat owners heading to war torn Dunkirk . Most of the boats came from Kent (my home county) and in elementary school we learned a poem about their acts of courage.
The little ships, the little ships, rushed out across the sea
to save the luckless armies from death and slavery
from Tyne and Thames and Tamar, the Severn and the Clyde
the little ships, the little ships, went out in all their pride
and home they brought their warriors, weary and ragged and worn
back to the hills and shires, and the towns where they were born
three hundred thousand warriors, from hell to home they came
in the little ships, the little ships, of everlasting fame.