When Mamma Roma removes Clementina's veil and puts it on her own head, the camera cuts to Carmine's reaction. Next to him, we can see the sides of the veil still on Clementina's head.
In the opening titles, the music that is playing over the titles is noted as "Concerto in Do maggiore di Vivaldi," which translates in English as "Concerto in C major by Vivaldi." The music actually playing is the Largo (slow) movement from Vivaldi's Concerto in D minor (catalog number RV 540)