Planet of Dinosaurs is a 1977 science fiction film. Set in an unspecified future, the film follows the journey of Captain Lee and his crew after they crash land on a planet with similar life conditions as Earth, but millions of years behind in time. Encountering a wide variety of dangerous dinosaurs, the crew decides that its best chance for survival lies on finding higher ground and setting up a defensive perimeter on a higher plateau for refuge to wait for when (or if) their rescuers arrive. They soon encounter a deadly Tyrannosaurus and must figure out a way to defeat the creature and survive on the planet.

The film's director, James K. Shea, instructed most of the budget to be spent on the special effects for the film, which included an array of award-winning stop motion dinosaurs, leaving little money for props or even to pay the main actors. James Whitworth and Max Thayer had the most film experience of the actors. Modern reviews have generally been negative, although there is agreement that the stop motion dinosaurs were the most notable and enjoyable aspect of the film.