Warbler said:

A movie about the time frame in WWII when Britain was fighting Germany alone.

Not sure I can help with the rest on that list but there are a few fantastic movies about that ^ subject...

Battle of Britain (1969) classic dogfighting which must have influenced the trench run in SW, from James Bond Director Guy Hamilton

Fires Were Started (1943) powerful contemporary docu-drama about Blitz-Firefighters by Humphrey Jennings

Hope and Glory (1987) absolute masterpiece about growing up amongst the rubble of London by the legendary John Boorman

One of Our Aircraft is Missing (1942) Rewatched this just the other day on an HD-TV broadcast. Magnificent early film from Powell and Pressburger about a downed Wellington Bomber crew trying to get home with the help of the Dutch resistance. Also it being a contemporary movie adds weight to the emotions.