River of Evil (German: Und der Amazonas schweigt) is a 1963 Brazilian-West German adventure film directed by Franz Eichhorn and starring Barbara Rütting, Harald Leipnitz and Oswaldo Loureiro. It was shot in Eastmancolor on location on the River Amazon. The film's sets were designed by the art director Alexandre Horvat.
Susanne's father, a celebrated explorer, went missing somewhere on the River Amazon. She hires Pedro, a local of German descent to guide her in her search. However they encounter the villain known as the "Green Napoleon" who ruthlessly exploits the Indigenous people for his rubber plantation.