Doraemon Movie 01: Nobita no Kyouryuu

Nobita proudly raises a dinosaur he names Pisuke after discovering a fossilized egg and using Doraemon's technology to hatch it. Their bond quickly becomes impossible to hide, and when Pisuke grows too large to remain in modern Japan, Nobita reluctantly takes him back to the Cretaceous period.

A mistake leaves Pisuke far from the place where he belongs, while hunters from the future target rare dinosaurs for profit. Nobita, Doraemon, Shizuka, Gian, and Suneo travel into prehistory to reunite their friend with his kind, embarking on a dangerous journey across an ancient world where their gadgets cannot solve every problem.