A wealthy Italian household is turned upside down when a handsome stranger arrives, seduces every family member and then disappears. Each has an epiphany of sorts, but none can figure out who the seductive visitor was or why he came.
Unfortunately the movie Theorem is not yet available on HBO Max.
| Directing | Pier Paolo Pasolini | Director |
| Costume & Make-Up | Marcella De Marchis | Costume Design |
| Sound | Ennio Morricone | Original Music Composer |
| Production | Franco Rossellini | Producer |
| Art | Luciano Puccini | Production Design |
| Production | Manolo Bolognini | Producer |
| Camera | Giuseppe Ruzzolini | Director of Photography |
| Editing | Nino Baragli | Editor |
| Sound | Gianni Zampagni | Boom Operator |
| Art | Dario Fronzetti | Set Designer |
| Camera | Giuseppe Buonaurio | Assistant Camera |
| Production | Sergio Galiano | Production Secretary |
| Production | Paolo Frascà | Production Manager |
| Writing | Pier Paolo Pasolini | Screenplay |
| Sound | Bruno Nicolai | Music Director |
| Directing | Sergio Citti | Assistant Director |
| Camera | Luigi Conversi | Assistant Camera |
| Sound | Bernardino Fronzetti | Sound |
| Camera | Otello Spila | Camera Operator |
| Costume & Make-Up | Maria Teresa Corridoni | Key Hair Stylist |
| Costume & Make-Up | Goffredo Rocchetti | Makeup Artist |
| Directing | Vanda Tuzzi | Script Supervisor |
| Costume & Make-Up | Manlio Rocchetti | Makeup Artist |
| Sound | Fausto Ancillai | Sound Mixer |
| Costume & Make-Up | Roberto Capucci | Costume Design |
| Camera | Angelo Novi | Still Photographer |
