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Primitive War→Primitive War
Ethan Pettus·2025·Director: Luke Sparke
65%
Faithfulness
N/A
Book Rating
2.7
Movie Rating
Ryan Kwanten, Tricia Helfer, Nick Wechsler
The Book
Primitive War: Opiate Undertow, originally released as Primitive War in early editions, is a 2017 self-published debut novel by American writer Ethan Pettus. The novel follows a group of American soldiers who encounter de-extinct dinosaurs in a jungle valley in Vietnam in 1968. It is first book in the Primitive War series, and spawned a 2025 film of the same name.
The Film
Primitive War is a 2025 Australian science fiction action horror film directed by Luke Sparke and based on the 2017 novel of the same name by Ethan Pettus, who both co-wrote the script for film. Starring Ryan Kwanten, Tricia Helfer, Nick Wechsler and Jeremy Piven, the film is set in a Vietnam jungle valley during 1968 and follows a reconnaissance unit who carries out a rescue mission for a US Army Special Forces platoon and are attacked by de-extinct dinosaurs.
Key Differences
The film condenses subplots and trims interior moments present in the book.
Our Verdict
Read the book firstRead first — the novel offers depth the film couldn't fully capture.
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