Under Ten Flags
Sotto dieci bandiere (original)
Starring Van Heflin, Charles Laughton, Mylène Demongeot, John Ericson, Cecil Parker, Folco Lulli, Alex Nicol, Liam Redmond, Eleonora Rossi Drago, Ralph Truman
It's a history and war movie, and has a rating of 6.5 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Austria.