Walking with Dinosaurs (also advertised as Walking with Dinosaurs: The 3D Movie) is a 2013 British-Australian-American live-action/computer-animated family film about dinosaurs set in the Late Cretaceous period, years ago. The production features computer-animated dinosaurs in live-action settings with actors John Leguizamo, Justin Long, Tiya Sircar, and Skyler Stone providing voiceovers for the main characters. It was directed by Neil Nightingale and Barry Cook from a screenplay by John Collee.