The film was shot in 14 days: 12 in the Sammezzano Castle and 2 in others locations.
The trees in the castle's park are real Giant Sequoias, planted at the half of 1800 by Ferdinando Panciatichi Ximenes D'Aragona. There are 57 Giant Sequoias taller than 115 ft (35 m.).
The Twins Sequoias in the castle's park are taller than 164 ft. (50 m.).
The paintings fictionally painted by Peter Cavendish are really copies of famous paintings, chosen by Carlo Baldacci Carli between the most famous paintings studied by Ufology.
After the reading of Peter Cavendish's Testament and Last Will, when all the characters speak their maternal language, the reproduction of Pieter Bruegel The Elder's The Tower of Babel has shown.