When Dinosaurs Roamed America (shortened to When Dinosaurs Roamed outside of the U.S.) is a two-hour American television program (produced in the style of a traditional nature documentary) that first aired on the Discovery Channel in 2001. It was directed by Pierre de Lespinois and narrated by actor John Goodman. The featured dinosaurs were designed by Paleo-artist and art director Mark Dubeau, and noted for creat