Río Negro
| MPAA Rating: | NR |
| Genre: | Documentary |
| Country: | Cuba |
| Directed By: | Manuel Pérez |
| Written By: | Manuel Pérez, Victor Casaus |
| Cast: | Sergio Corrieri, Raúl Pomares, Alejandro Lugo, René De La Cruz, Mario Balmaseda, Nelson Villagra |
| In Theaters: | May 01, 1978 |
| Runtime: | 2 hours 15 minutes |
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