Walking with Dinosaurs | Ballad of Big Al | Diplodocus Herd
Big Al's skills as a predator are put to the test when he and two other Allosauruses face a herd of Diplodocus.
1999-10-20 19:00:00 - BBC Earth
Broadcast in 1999, Walking with Dinosaurs set out to create the most accurate portrayal of prehistoric animals ever seen on the screen.
Combining fact and informed speculation with cutting-edge computer graphics and animatronics effects, the series took two years to make.