The Land Before Time is a 1988 American-Irish animated adventure drama film directed and co-produced by Don Bluth and executive produced by Steven Spielberg, George Lucas, Kathleen Kennedy, and Frank Marshall.
Produced by Sullivan Bluth Studios, Spielberg's Amblin Entertainment and Lucas' Lucasfilm (despite not receiving an official credit nor the film's marketing bearing the studio's logo), it features dinosaurs living in the prehistoric times. The plot concerns a young Brontosaurus named Littlefoot who is orphaned when his mother is killed by a Tyrannosaurus. Littlefoot flees famine and upheaval to search for the Great Valley, an area spared from devastation. On his journey, he meets four young companions: Cera, a Triceratops; Ducky, a Saurolophus; Petrie, a Pteranodon; and Spike, a Stegosaurus.