......don't recall any movies on the subject....
I might suggest a book and two films based on this...
A Farewell to Arms is a novel written by Ernest Hemingway set during the Italian campaign of World War I. The book, published in 1929, is a first-person account of American Frederic Henry, serving as a Lieutenant ("Tenente") in the Ambulance Corps of the Italian Army. The title is taken from a poem by 16th-century English dramatist George Peele.
A Farewell to Arms is a 1932 American romance drama film directed by Frank Borzage and starring Helen Hayes, Gary Cooper and Adolphe Menjou. Based on the 1929 semi-autobiographical novel A Farewell to Arms by Ernest Hemingway, with a screenplay by Oliver H.P. Garrett and Benjamin Glazer, the film is about a romantic love affair between an American ambulance driver and an English nurse in Italy during World War I.
A Farewell to Arms is a 1957 American DeLuxe Color CinemaScope drama film directed by Charles Vidor, starring Rock Hudson and Jennifer Jones. The screenplay by Ben Hecht, based in part on a 1930 play by Laurence Stallings, was the second feature film adaptation of Ernest Hemingway's 1929 semi-autobiographical novel of the same name.
(from Wikipedia)
Carlo