Ostia [1080p] (1970) -

Directed by Pier Paolo Pasolini. While released in 1971, it was filmed in 1970 and features locations in and around Rome. Pasolini had a profound personal and professional connection to Ostia, eventually meeting his death there in 1975.

Knowing the source (e.g., a specific YouTube channel or a film festival listing) would help narrow down the exact "piece." Julian Cole's Cable Street Inn - The World Of Interiors Ostia [1080p] (1970)

In 1970, the area was seen through the lens of Pasolini’s "neorealism"—a place of the Roman sub-proletariat, coastal decay, and haunting beauty. Directed by Pier Paolo Pasolini