The Tunnel of the Bellows (2025)
- Genre: Documentary
- Release Date: 2025-12-26
- Runtime: 0h 30min
- Language: euskera
- Production Country: Spain
- Directors: Iñaki Pinedo, Gorka Hermosa.
A documentary film about the origins of the Basque trikitixa. It reflects how the small accordion brought by one of the Italian workers who came to build the Madrid-Paris railway tunnels in 1859, starting from Zumarraga, has become a symbol of contemporary Basque music.
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| Directing | Iñaki Pinedo | Director |
| Writing | Iñaki Pinedo | Writer |
| Directing | Gorka Hermosa | Director |
| Writing | Gorka Hermosa | Writer |
| Camera | Marcos Fernández Aldaco | Director of Photography |
| Camera | Hugo Herrera | Director of Photography |
| Sound | Daniél López de Arróyabe | Sound |
| Editing | Marco Aldaco | Editor |
| Sound | Javier Gil | Sound |
| Production | Gorka Hermosa | Producer |
