While there are SOME Latin words, this is most certainly not all Latin. I am quite familiar with Latin, Spanish, Italian and German...as well as a few other languages. The words seem to be a "stew", if you will, of words and sounds that evoke, in the listener, feelings of Latin, Gaelic, Hebrew, a sort of, "universal language". If one looks at the film itself, they will see the multitude of nationalities, Spanish, Italian, Arabic, Asian, African, German, etc. These lyrics seem to touch each of these nationalities as if to say, "Now We Are Free" to all people. And, at the end of the movie, isn't that what took place? By the way, FLAVUM, whose root is FLAVUS, means golden or yellow (Perhaps, the golden wheat in the dream?). Remember, in Latin you have a stem and ending. Flavus can have two endings, -a and -um. Someone on this list used...

flamma : flame, fire.
flatus : blowing, blast, breathing, arrogance, haughtiness.
flax, falcis : sickle, bill-hook, pruning hook.
inflatio : inflation, flatulence.

as a "definition" of Flavum. This, however, is a search result using L. Nelson's Latin WORDLIST...not DICTIONARY. Nelson's list is medieval latin words and does not contain FLAVUM, hence the return of FLAMMA,FLATUS, etc.
Gio