Overview
A young inventor is kidnapped to force him to tell the secret of his invention, but he foils his captors thanks to a pen with invisible ink.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 36 | July 31, 1954 (79) | |
 | 34 | February 8, 1968 (90) | |
 | 38 | January 29, 1920 (46) | |
 | 23 | July 12, 1982 (93) | |
 | 25 | 139 |