In Which We Serve
Starring Noël Coward, John Mills, Bernard Miles, Celia Johnson, Kay Walsh, Joyce Carey, Derek Elphinstone, Michael Wilding, Robert Sansom, Philip Friend
It's a drama and war movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.