This low-budget monster movie, "Dinosaurus!" (released in 1960 but filmed in 1959), feels like a relic of the fifties, and it’s not entirely without charm—it had a similar appeal to “Jurassic Park” back when it was made, relying on stop-motion effects combined with miniatures and puppets for its dinosaur close-ups. The plot is straightforward: during harbor construction on a Caribbean island involving explosives, wor…