Thrilling forum

Nonostante le apparenze... e purchè la nazione non lo sappia... all'onorevole piacciono le donne (1972) as Man at memorial service

Anna perdonami (1953) as Party guest playing cards
In the film he's only shot from behind, but is a little more visible in this image from the film's poster

The Angel Wore Red (1960) as Nightclub customer

Almost impossible since he is very far, but when you watch the movie you can see Sandro Mondini dancing in
Povere ma belle (1957)

Orient Express (1954) as Guest at the dinner

Puccini (1953) first seen as a guest at Tacchi's house and later introduced at the opera as the Duke of Almont.

La Certosa di Parma (1948) as Nobleman? Courtier? Man in the palace? Take your pick!

Sandro in the fotoromanzo, Sogno N.51 "Noi che ci amiamo" (december 51 to may 52)
here he is seen with Lydia Zanussi as the aunt (picture for her already in topic)

Il conte di Matera (1958) as Nobleman

When in Rome (1952) American production, shot in Rome as a priest
only seen for a few seconds, he is the 5th from the right