Walking with Dinosaurs was a six-part television series produced by the BBC, narrated by Kenneth Branagh, and first aired in the UK in 1999. The series was subsequently aired in North America on the Discovery Channel, with Branagh's voice replaced with that of Avery Brooks. The series used computer-generated imagery and animatronics to recreate the life of the Mesozoic, showing dinosaurs in a way that previously had only been seen in the feature films. The program's aim was to simulate the style of a nature documentary and therefore does not include "talking head" interviews. The series used paleontologists such as Peter Dodson, Peter Larson and James Farlow as advisors (their influence in the filming process can be seen in the documentary Walking with Dinosaurs - The Making Of).

The Guinness Book of World Records reported that the series was the most expensive documentary series per minute ever made.http://www.guinnessworldrecords.com/content_pages/record.asp?recordid=53368

Using the latest technology the amazing lost world of the Cretaceous, Triassic and Jurassic periods of Earth's history, when the dinosaurs reigned supreme, is brought stunningly back to life. The series provides insights into how these mammoth creatures appeared, how they survived for millions of years and probes the mysteries of their sudden disappearance leaving only a fossil record to show they had ever existed! Written by Mark Smith