The film portrays the comic adventures of a group of summertime travellers. Produced at the height of the fascist era, Treno popolare was nonetheless free of propaganda, and featured the first film score by the legendary composer Nino Rota.
| Directing | Raffaello Matarazzo | Director |
| Writing | Raffaello Matarazzo | Story |
| Writing | Raffaello Matarazzo | Screenplay |
| Writing | Gastone Bossio | Screenplay |
| Writing | Gastone Bossio | Story |
| Production | Gastone Bossio | Producer |
| Sound | Nino Rota | Original Music Composer |
| Camera | Anchise Brizzi | Director of Photography |
| Sound | Giorgio Melchiori | Sound |
| Directing | Marcello Caccialupi | First Assistant Director |
| Camera | Domenico Scala | Director of Photography |
| Writing | Gino Mazzucchi | Co-Writer |
