'' Walking with Monsters '' ( distributed in North America as '' Before the Dinosaurs - Walking with Monsters '' ) is a three-part British documentary film series about life in the Paleozoic and early Mesozoic eras . It is a prequel to '' Walking with Dinosaurs '' and was written and directed by Chloe Leland and by Tim Haines and narrated by Kenneth Branagh . It first aired on BBC Three and BBC One in November and December 2005 . At the 58th Primetime Emmy Awards in 2006 it won the Emmy Award in the category Outstanding Animated Program ( For Programming One Hour or More )
58th Primetime Emmy Awards
58th Primetime Emmy Awards
Walking with Monsters