Bóias Frias (1974)
Documentary produced by the School of Communications and Arts (ECA) at the University of São Paulo (USP), with support from the Paraná State Department of Agriculture, documenting working conditions in rural areas of the interior of São Paulo State and northern Paraná, where coffee cultivation was the predominant agricultural activity throughout the 20th century.
Director: Reinaldo Volpato
| Production | João Batista de Andrade | Producer |
| Production | Augusto Sevá | Executive Producer |
| Production | Reinaldo Volpato | Executive Producer |
| Crew | Adilson Ruiz | Cinematography |
| Sound | Wagner Carvalho | Sound |
| Editing | Reinaldo Volpato | Editor |
| Editing | Sérgio Almada | Editor |
| Production | Maria Alice B. Francisco | Producer |
| Directing | Reinaldo Volpato | Director |