I think so, too. It's another little subtle touch--like (in the film) having Barzini smoke a cigarette while all the "moustache Petes" were smoking DiNobile's.

Ntra la porta tua lu sangu � sparsu,
E nun me mporta si ce muoru accisu...
E s'iddu muoru e vaju mparadisu
Si nun ce truovo a ttia, mancu ce trasu.