I did not think I could get any information on this film. Surprise.
I was in the U.K.throughout the war, I was an evacuee. My treatment was just like this movie. I saw it when it first came out, I was 15 years old and had been working for a little over a year, in London. Although somewhat sad it was also very amusing. Films like this leave a lasting impression. I remember one line in particular when the small boy got hold of a hat and stuck it in the pitcher, the comment was "What happened to me Sailor Beware", it was a womens sailor hat.
If you have lived through a war, buzz bombs, being bombed out, you would not appreciate the artistry of this production as much as I did.