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The Land Before Time is an animated film, produced by Steven Spielberg's Amblin Entertainment and directed by Don Bluth. It was originally released in movie theaters in 1988 by Universal Pictures and Sullivan Bluth Studios. It features anthropomorphic dinosaurs living in a somewhat fantasy-based version of prehistoric earth.

The film's plot concerns a young Apatosaurus named Littlefoot who becomes orphaned after the death of his mother, caused from injuries suffered while battling a malevolent Tyrannosaurus ("Sharptooth") and the effects of an earthquake. Littlefoot flees famine and upheaval to search for the "Great Valley", an area which has been spared devastation. During his journey, he encounters four young companions: Cera, a Triceratops; Ducky, a Parasaurolophus ; Petrie, a Pteranodon; and Spike, a Stegosaurus.[2] The film explores issues of prejudice between the different species and the hardships they endure in their journey as they are guided by the spirit of Littlefoot's mother.

The film was a critical and financial success and spawned a dozen sequels as well as merchandise and a TV series.