In 1989, Warner Bros. Pictures are they similar to Don Bluth's film The Land Before Time. In 1994, Warner Bros. Pictures and Jim Henson's Creature Workshop was originally titled "Dinosaurs" a combination of CGI animated. In 1995, Warner Bros. and Jim Henson's Creature Workshop (Dinosaurs) is originally planned is a computer-generated feature Dinosaur is originally concept Live Action in Fall 1996 In 1997, Warner Bros./Jim Henson's Creature Workshop originally concept art titled called Dinosaur. In the fall of 1998, Warner Bros./Jim Henson's Creature Workshop and Warner Bros. Feature Animation in early test of Dinosaurs are 3-D characters and live-action backgrounds is compeleted in 1999.