I just stumbled across this on imdb:

Naples '44 (documentary) - currently filming, due to be released this year.
A British Intelligence Officer in Naples at the end of World War II: Norman Lewis’s acknowledged masterpiece about a war-torn city and its unforgettable humanity.

The documentary is based on the memoirs/diary of Norman Lewis (available from Amazon etc.) titled Naples '44: A World War II Diary of Occupied Italy
“As a young intelligence officer stationed in Naples following its liberation from Nazi forces, Norman Lewis recorded the lives of a proud and vibrant people forced to survive on prostitution, thievery, and a desperate belief in miracles and cures. Naples ‘44 is a landmark poetic study of the agony of wartime occupation and its ability to bring out the worst, and often the best, in human nature.”

I hope this documentary will see a worldwide release, it sounds as fascinating as Benedict's Letters Live work.