A true story of a doctor and his wife who went on a journey in order to prove that discoverer Christopher Columbus was in fact Portuguese. Inspired by the book "Cristóvão Colon Era Português".
| Writing | Manoel de Oliveira | Screenplay |
| Directing | Manoel de Oliveira | Director |
| Writing | Manuel da Silva | Writer |
| Writing | Sílvia da Silva | Writer |
| Production | François d'Artemare | Producer |
| Sound | José Luís Borges Coelho | Music |
| Camera | Sabine Lancelin | Director of Photography |
| Editing | Valérie Loiseleux | Editor |
| Sound | Henri Maïkoff | Sound Designer |
| Sound | Elsa Ferreira | Sound Designer |
| Costume & Make-Up | Adelaide Maria Trêpa | Costume Design |
| Production | Jacques Arhex | Executive Producer |
| Directing | Júlia Buisel | Script Supervisor |
| Production | Phillipa Davis | Line Producer |
| Art | Christian Marti | Production Design |