That even in times of desperate crisis, art can be colourful, energetic, humane, and crafted with care.
That even in times of international hatred, art can show two people who should be enemies becoming the best of friends.
That even though art often fixates on the appearance of women, it can also show, at the same time, that women are just as varied and versatile and obstinately themselves on the inside, as men are.
That art can show the degree to which we are not changed by life, and that this lack of change can often be a good thing: a sign of character, strength, and our own essential decency.
And finally, something that I did not learn, but which The Life And Death Of Colonel Blimp reaffirmed to me:
Powell & Pressburger were two of the world's great film-makers... and they still are.