Fantastic Voyage

Fantastic Voyage is a 1966 American science fiction adventure film directed by Richard Fleischer and written by Harry Kleiner, based on a story by Otto Klement and Jerome Bixby. The film is about a submarine crew which is shrunk to microscopic size and ventures into the body of injured scientist Dr. Jan Benes to repair damage to his brain. In adapting the story for his script, Kleiner added a Cold War element.