This bit of backlot nonsense has a team of men on a quest to recover a lost rocket. They wind up on an unknown prehistoric island and aside from occasionally -- rarely -- running away from clay dinosaurs, they spend the entire movie climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing and climbing a mountain. Uneventfully. And get this. The climax of the movie has everybody climbing down.