Willy McBean and his Magic Machine (1965) is a Rankin/Bass full-length stop-motion puppet animation film released in theaters. It was also the first stop-motion animated feature film in USA
Professor Rasputin Von Rotten builds a time machine to travel into the past to all the important accomplishments made in history to take credit for them himself. Pablo, his talking pet monkey, takes the plans for the doctor's scheme and runs away. Boy genius Willy McBean finds Pablo and travels into the past to reverse Von Rotten's damage. On the way, he sees dinosaurs, the wild west, cavemen, knights, pirates, Indians, and cowboys.