Writer-director Luke Sparke took some bold swings with his dinosaur horror movie Primitive War , and it yielded an over-the-top, riotous blast of a movie that somehow manages to compete with box office juggernaut Jurassic World Rebirth for the title of 2025's best dinosaur movie.

Adapted from Ethan Pettus' 2017 novel of the same name, Primitive War has a simple yet wonderfully preposterous core concept: What would happen if a Vietnam War recon group encountered vicious dinosaurs in the jungles of Southeast Asia ? Sparke understands the assignment here, which is to ramp up the action and horror elements to create a wildly entertaining B-movie.

Smashing the war genre together with dinosaur horror shouldn't work as well as it does here, but Sparke manages to infuse a surprising

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