Romeo and Felice lead two rival bands who constantly make fun of each other. One day, Romeo meets and falls in love with Giulietta, without knowing that she is Felice's sister.
Unfortunately the movie I Fichissimi is not yet available on HBO Max.
| Directing | Carlo Vanzina | Director |
| Writing | Carlo Vanzina | Story |
| Writing | Enrico Vanzina | Story |
| Sound | Detto Mariano | Original Music Composer |
| Camera | Alessandro D'Eva | Director of Photography |
| Editing | Raimondo Crociani | Editor |
| Costume & Make-Up | Marina Straziota | Costume Design |
| Art | Giuseppe Mangano | Production Design |
| Directing | Bruno Cortini | First Assistant Director |
| Production | Rossella Angeletti | Unit Manager |
| Production | Claudio Bonivento | Executive Producer |
| Production | Mario D'Alessio | Production Manager |
| Production | Mario Cecchin | Production Secretary |
| Production | Roberto Mezzaroma | Administration |
| Production | Marcello Nusca | Accountant |
| Directing | Luda Arlorio | Script Supervisor |
| Camera | Angelo Lannutti | Camera Operator |
| Camera | Pino Venditti | Assistant Camera |
| Art | Emita Frigato | Assistant Production Design |
| Art | Antonio Tarolla | Assistant Production Design |
| Costume & Make-Up | Giulio Natalucci | Makeup Artist |
| Costume & Make-Up | Vitaliana Patacca | Hairstylist |
| Editing | Lidia Pascolini | Assistant Editor |
| Sound | Vittorio Massi | Sound |
| Camera | Umberto Torriero | Key Grip |
| Lighting | Francesco Pandolfi | Gaffer |
| Costume & Make-Up | Lucia Baldacci | Seamstress |
| Sound | Danilo Moroni | Sound Mixer |
| Writing | Enrico Vanzina | Screenplay |
| Writing | Carlo Vanzina | Screenplay |