Ariadna discovers that her grandfather has been searching for the remains of his father, who disappeared during the Civil War. Determined to help him, she travels to Burgos, where a mass grave is being excavated, and where he could be buried. During her stay there, she will learn the story of Antoni Benaiges, a young teacher from Tarragona who was her grandfather's teacher before the war. Through an innovative pedagogical method, Antoni inspired his students and made them a promise: to take them to see the sea.
Unfortunately the movie The Teacher Who Promised the Sea is not yet available on HBO Max.
| Production | Marc J. Peabody | Production Trainee |
| Directing | Patricia Font | Director |
| Writing | Albert Val | Writer |
| Sound | Gisela Maestre | Dialogue Editor |
| Crew | Miquel Angel Riaza | Mixing Engineer |
| Sound | Miquel Angel Riaza | Sound Designer |
| Costume & Make-Up | Maria Armengol | Costume Design |
| Production | Toni Soler | Producer |
| Art | Josep Rosell i Palau | Art Direction |
| Art | Anna Auquer | Set Decoration |
| Production | Maite Fontanet | Line Producer |
| Production | Carlos Fernández | Producer |
| Production | Sergi Moreno | Producer |
| Production | Laura Fernández Brites | Producer |
| Crew | David Valldepérez | Cinematography |
| Writing | Francesc Escribano | Novel |
| Production | Francesc Escribano | Producer |
| Sound | Natasha Arizu del Valle | Music |
| Production | Marcel Barrena | Executive Producer |
| Production | Tono Folguera | Producer |
| Editing | Dani Arregui | Editor |
