Великая иллюзия
In Jean Renoir's 1937 film "La Grande Illusion", two songs are juxtaposed in exactly the same way as in "Casablanca" five years later. In the latter movie, "" was sung by German officers, who then were drowned out by exiled French singing La Marseillaise (which began as the "War Song for the Army of the Rhine", written and composed at the Rhine).