The film centres on Moncho and his coming-of-age experience in Galicia in 1936. Moncho develops a close relationship with his teacher Don Gregorio who introduces the boy to different things in the world. While the story centres on Moncho's ordinary coming-of-age experiences, tensions related to the looming Spanish Civil War periodically interrupt Moncho's personal growth and daily life.
Yes! The movie Butterfly is now on Disney Plus in the countries listed below.
| Writing | Rafael Azcona | Screenplay |
| Sound | Alejandro Amenábar | Music |
| Writing | Manuel Rivas | Novel |
| Writing | José Luis Cuerda | Screenplay |
| Directing | José Luis Cuerda | Director |
| Sound | Ricardo Steinberg | Sound Designer |
| Editing | Ignacio Cayetano Rodríguez | Editor |
| Camera | Javier Salmones | Director of Photography |
| Directing | Pedro Loro | Assistant Director |
| Directing | Carmen Soriano | Script Supervisor |
| Art | Balter Gallart | Set Decoration |
| Costume & Make-Up | Sonia Grande | Costume Design |
| Production | Jose Maria Iresteiro | Associate Producer |
| Production | Fernando Bovaira | Executive Producer |
| Directing | Mateo Gil | Assistant Director |
| Costume & Make-Up | Teresa Rabal | Hairstylist |
| Production | José Luis Cuerda | Executive Producer |
| Production | Emiliano Otegui | Line Producer |
| Production | Ana Míguez | Producer's Assistant |
| Directing | José Ramón Otegui | Assistant Director |
| Art | Josep Rosell i Palau | Production Design |
| Directing | Walter Prieto | Assistant Director |
| Editing | Nacho Ruiz Capillas | Editor |
| Costume & Make-Up | Ana López-Puigcerver | Makeup Designer |
