Walking with Dinosaurs is a 2013 3D live-action/computer-animated family film about dinosaurs set in the Late Cretaceous period, 70 million years ago. The production features computer-animated dinosaurs in live-action settings with actors John Leguizamo, Justin Long, Tiya Sircar, and Skyler Stone providing voice-overs for the main characters. It was directed by Neil Nightingale and Barry Cook from a screenplay by John Collee.