Erreferenduma (1978)
- Genre: Documentary
- Release Date: 1978-01-01
- Runtime: 0h 12min
- Language: euskera
- Production Company: Bertan Filmeak S.A.
- Production Country: Spain
- Director: Antxón Eceiza
Pilot chapter of the film series 'Ikuska', a compilation of shorts on the Basque Country’s culture and politics. A documentary about the referendum on the Spanish constitution.
Unfortunately the movie Erreferenduma is not yet available on HBO Max.
| Directing | Antxón Eceiza | Director |
| Editing | Alberto Magán | Editor |
| Sound | José Luis Zabala | Sound |
| Art | Daniel Gil | Title Designer |
| Production | Antxón Eceiza | Production Manager |
| Camera | Javier Aguirresarobe | Director of Photography |
| Production | Luis Iriondo | Production Coordinator |
