Cast & crew
Los días duros (1970)
Directed by Julio César Mármol Written by José Antonio Guevara, Antonio Almeida, José Ignacio Cabrujas
Cast
| José Bardina | |
| Cecilia Villarreal | |
| Pina Martínez | |
| Paul Carciente | |
| Manolo González | |
| Mirtha Pérez |
Crew
| Tony Rodríguez | Director of Photography |
| Aldo Pereira | Assistant Director |
| Julio César Mármol | Director |
| José Gay | Music |
| José Antonio Guevara | Writer |
| Ramón Arellano | Sound |
| Antonio Almeida | Writer |
| José Ignacio Cabrujas | Writer |