[5] Ernest B. Schoedsack (King Kong, The Most Dangerous Game) directs this schlocky sci-fi matinee flick about a mad scientist (Albert Dekker) who summons colleagues to his South American jungle laboratory. Once there, the guests discover he is using radium to shrink living creatures to miniature size. When they threaten to expose his unorthodox work, he shrinks them for study. It’s then a matter of …