This documentary is a view of life on earth before the dinosaurs. The film begins with the creation of the Moon by the impact of the hypothetical planet Theia with the Earth. Starting with the Cambrian period 530 million years ago, the evolution of life on earth is documented, starting with the earliest of man's ancestors, the Haikouicthys, an orange "fish" the size of a thumbnail. The progress of the sea-dwelling creatures is charted as they evolve into being able to exist on land and ends where the documentary "Walking with Dinosaurs" picks up, at the end of the Triassic period, with the first dinosaurs walking the earth and forcing the smaller mammalian creatures into a nocturnal existence of hiding.
If you get the actual DVD, the extras include a thirty-minute documentary entitled Trilogy of Life. This documentary covers all of the Walking with series (Dinosaurs, Beasts, and Monsters). There are numerous interviews with the filmmakers and producers of the series. There is even footage of the real locations and backgrounds before the animated beasts were inserted by computer. It's funny to see the filmmakers kicking up dust and moving trees with wires "pretending" to be the dinosaurs since the dinosaurs would be inserted later. The documentary itself is presented with a great deal of detail and authority, as if the filmmakers know for a fact that this is exactly what took place, when in fact it is all quite hypothetical. However, you have to watch it understanding that its purpose is not to present an academic thesis. Instead, its purpose is to bring prehistory to life, just as if you were watching present-day animals being filmed, complete with animated prehistoric beasts occasionally bumping into an imaginary camera.
As children, my stepkids absolutely loved this documentary. This film just goes to prove that science can be made interesting, inviting the viewer to further investigate what is being presented. That is the purpose of the film, and it does succeed brilliantly.
