Doraemon: Nobita and the Knights of Dinosaurs (1987)
Doraemon: Nobita and the Knights of Dinosaurs is a feature-length Doraemon film which premiered on March 14, 1987.
More at Wikipedia.
Director: Tsutomu Shibayama
Distributor: Toho Company
Release date: March 14, 1987
Running time: 91 minutes