The movie Massacre in Dinosaur Valley (1985) is an Italian adventure horror film. The movie Massacre in Dinosaur Valley (1985) follows a group of explorers on an expedition into the Amazon rainforest who encounter prehistoric dinosaurs and cannibal tribes.
The movie begins with Professor Ibañez leading a team including photographer Kevin, guide Chico, and female companions Dina and Margaret down the Amazon River by boat. They are searching for the mysterious Dinosaur Valley said to be home to surviving dinosaurs. Along the way, the group has skirmishes with aggressive natives and discovers a tribe of cavewomen. Later, they enter Dinosaur Valley and find it inhabited by rampaging dinosaurs such as tyrannosaurs and pterodactyls.
- Michael Sopkiw as Kevin Hall
- Suzane Carvalho as Dina
- Milton Rodriques as Chico
- Marta Anderson as Margaret
- Leonidas Bayer as Professor Ibañez
The film was shot on location in Brazil with Italian actors speaking English phonetically.
The dinosaurs were made using crude stop-motion animation techniques.
The title was changed to Primal Rage for the American home video release.