Here is a great looking family film from South Korea that is very much in the style of the "Land Before Time" movie series.
After the great disaster of the Cretaceous Period 80 million years ago, a Tarbosaurus named Speckles lost all of his family but his youngest son. Unlike his father, Mak-ne is scared and timid and is always being picked on by other dinosaurs. One day, Mak-ne is abducted by 3 Deinonychuses and Speckles embarks on an adventure to start looking for him. On his way, he meets Songgot who is looking for his daughter and a friendly herbivor named Sai. Together, they continue their journey until Speckles finds clues about the whereabouts of his son Mak-ne. However, a mutant dinosaur appears in front of them. Will Speckles be able to save his son?