A trio of opera singers are reunited by a wedding ten years after their stormy breakup.
Unfortunately the movie Off Key is not yet available on HBO Max.
| Directing | Manuel Gómez Pereira | Director |
| Writing | Yolanda García Serrano | Writer |
| Writing | Juan Luis Iborra | Writer |
| Writing | Joaquín Oristrell | Writer |
| Writing | Manuel Gómez Pereira | Writer |
| Production | Ginétévé Fabienne | Executive Producer |
| Production | Andrés Vicente Gómez | Producer |
| Production | Servan Schreiber | Executive Producer |
| Sound | Bernardo Bonezzi | Original Music Composer |
| Camera | Juan Amorós | Director of Photography |
| Editing | José Salcedo | Editor |
| Art | Alain Baineé | Production Design |
| Art | Juan Pedro de Gaspar | Set Decoration |
| Costume & Make-Up | Alberto Luna | Costume Design |
| Costume & Make-Up | Juan Pedro Hernández | Makeup Artist |
| Costume & Make-Up | Concepción del Hoyo | Hairstylist |
| Costume & Make-Up | Rodolfo Olmedo | Hairstylist |
