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.

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Main Cast: John Drew Barrymore, Scilla Gabel, Giacomo Rossi Stuart, Mario Pisu, Jany Clair, Romano Ghini, Franco Balducci, Giampiero Calasso, Antonella Murgia, Ignazio Leone

Director: Leopoldo Savona

Writers: Leopoldo Savona, Mario Amendola, Roberto Gianviti, Gino Mangini

Editor:

Cinematographer: Pier Ludovico Pavoni

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