A couple of young movie makers have secretly filmed for over a year what was going on in a hotel room, trying to realize a "live act" of common people living their life. They get in touch with old and money-tight producer Mengaroni to edit their movie, but while they contact the accidental actors for gathering authorization, he starts to manipulate their work.
| Directing | Mario Monicelli | Director |
| Writing | Furio Scarpelli | Screenplay |
| Writing | Mario Monicelli | Screenplay |
| Camera | Tonino Delli Colli | Director of Photography |
| Editing | Ruggero Mastroianni | Editor |
| Writing | Agenore Incrocci | Screenplay |
| Production | Aurelio De Laurentiis | Producer |
| Production | Luigi De Laurentiis | Producer |
| Crew | Ottaviano Dell'Acqua | Stunts |
| Camera | Sandro Battaglia | Assistant Camera |
| Camera | Carlo Milani | Assistant Camera |
| Editing | Pasquale Cuzzupoli | Colorist |
| Writing | Agenore Incrocci | Story |
| Writing | Furio Scarpelli | Story |
| Writing | Mario Monicelli | Story |
| Sound | Detto Mariano | Original Music Composer |
| Art | Lorenzo Baraldi | Production Design |
| Costume & Make-Up | Gianna Gissi | Costume Design |
| Production | Eros Lafranconi | Production Manager |
| Directing | Josette Barnetche Santini | Script Supervisor |
| Production | Mario Olivieri | Production Supervisor |
| Production | Cecilia Valmarana | Production Secretary |
| Camera | Carlo Tafani | Camera Operator |
| Camera | Roberto Forges Davanzati | Camera Operator |
| Camera | Alfonso Avincola | Still Photographer |
| Sound | Domenico Dubbini | Sound |
| Costume & Make-Up | Otello Sisi | Makeup Department Head |
| Costume & Make-Up | Gino Tamagnini | Makeup Artist |
| Costume & Make-Up | Luciana Palombi | Hairstylist |
| Art | Francesco Frigeri | Assistant Production Design |
| Art | Ezio Di Monte | Assistant Production Design |
| Costume & Make-Up | Paola Martini | Assistant Costume Designer |
| Costume & Make-Up | Maria Zara | Tailor |
| Lighting | Giuliano Michisanti | Gaffer |
| Camera | Augusto Diamanti | Key Grip |
| Editing | Gasperina Marani | Assistant Editor |
| Editing | Leda Bellini | Assistant Editor |
| Editing | Carlo Pulerà | Assistant Editor |
| Sound | Danilo Moroni | Sound Mixer |
| Directing | Francesco Laudadio | First Assistant Director |