The plot weaves several episodes with several groups of people, Roman families, youth gangs and young love couples, who spend a Sunday at the beach of Ostia.
Unfortunately the movie Sunday in August is not yet available on HBO Max.
| Directing | Luciano Emmer | Director |
| Camera | Leonida Barboni | Director of Photography |
| Camera | Ubaldo Marelli | Director of Photography |
| Camera | Domenico Scala | Director of Photography |
| Production | Anna Davini | Unit Manager |
| Writing | Luciano Emmer | Screenplay |
| Directing | Giulio Macchi | First Assistant Director |
| Directing | Francesco Rosi | First Assistant Director |
| Sound | Raoul Magni | Sound |
| Directing | Lauro Venturi | Script Supervisor |
| Sound | Roman Vlad | Original Music Composer |
| Production | Paolo Moffa | Production Manager |
| Writing | Sergio Amidei | Story |
| Writing | Cesare Zavattini | Screenplay |
| Writing | Franco Brusati | Screenplay |
| Writing | Giulio Macchi | Screenplay |
| Production | Sergio Amidei | Producer |
| Editing | Jolanda Benvenuti | Editor |