Matias meets Violeta, his cousin one morning in Madrid at the Plaza de Opera. He is twenty-five. She is 18. He's a divorced journalist trying to write a thriller. She studies violin. She's a vegetarian. He loves meat. Many things separate them, but he moves into her apartment.
Unfortunately the movie Opera Prima is not yet available on HBO Max.
| Directing | Fernando Trueba | Director |
| Writing | Fernando Trueba | Screenplay |
| Writing | Óscar Ladoire | Screenplay |
| Production | Miguel Ángel Bermejo | Production Manager |
| Production | Fernando Colomo | Producer |
| Production | Manolo Matji | Producer |
| Camera | Ángel Luis Fernández | Director of Photography |
| Sound | Fernando Ember | Original Music Composer |
| Art | Fernando Colomo | Art Direction |
| Editing | Miguel Ángel Santamaría | Editor |
| Sound | Pierre Gamet | Sound Designer |
| Sound | Bernard Chaumeil | Boom Operator |
| Sound | Jesús Escalante | Sound mixer |
