I think a bit of clarification here is required; Romance languages are derived from Latin, and hence, Latin is not itself a Romance language. The following ARE Romance languages:
French
Spanish
Italian
Romanian
Portuguese
There may be others (for example, is Bretagne considered a dialect of French, or a language in its own right?), but the above five are definite.
And for the record, it is nothing short of SCANDALOUS if the Godfather DVD Colection does not have Italian audio or subtitles.