Using Leonardo Da Vinci's innovative designs for weapons of war, flying engines and other machinery, three brothers join forces to fight a wicked and powerful Duke in early-Renaissance Italy.
| Writing | Gino Mangini | Writer |
| Directing | Leopoldo Savona | Director |
| Writing | Mario Amendola | Story |
| Writing | Mario Amendola | Screenplay |
| Writing | Roberto Gianviti | Writer |
| Writing | Leopoldo Savona | Writer |
