Several works of art are shown during the movie. The painting that gets restored is "Portrait of a Young Girl" (ca. 1470) by Petrus Christus. Among the works studied by Oldman there is also "Birth of Venus" (1879) by William-Adolphe Bouguereau. Among the female portraits in his collection, one can spot: "Portrait of a Young Woman (La Fornarina)" (ca. 1519) and "Portrait of a Young Woman (La Muta)" (1507) by Raphael, "Violante" (ca. 1515), "La Bella" (1536) and "Portrait of Eleonora Gonzaga Della Rovere" (ca. 1538) by Titian, "Portrait of Eleaonor of Toledo and Her Son" (1545) and "Portrait of Lucrezia Panciatichi" (1541) by Bronzino, "Portrait of Caterina Sforza" (ca. 1490) by Lorenzo di Credi, "Zingarella" (1505) by Boccaccio Boccaccino, "Portarit of Lucretia Borgia" (ca. 1510) by Bartolomeo Veneziano, "Portrait of Lucina Brembati" (1518) by Lorenzo Lotto, "Lady with a Book of Petrarch's Rhyme" (ca. 1528) by Andrea del Sarto, "Portrait of Bianca Cappello" (ca. 1572) by Alessandro Allori, "Portrait of Elspeth Tucher" (1499) by Albrecht Dürer, "Salomè" (1510) by Lucas Cranach the Elder, "Portrait of Minerva Anguissola" (ca. 1570) by Sofonisba Anguissola, "Self-Portrait" (1580) by Marietta Robusti, "Girl with a Burning Candle" (ca. 1706) by Gottfried Schalken, "Portrait of Beatrice Cenci" (1599) and "Portrait of the Mother" (ca. 1620) by Guido Reni, "Self-Portrait" and "Portrait of Old Dame" by Rosalba Carriera, "Self-Portrait with Harp" (1750) by Rose-Adelaide Ducreux, "Portrait of Delphine Ingres-Ramel" (1859) and "Portrait of Madame Aymon" (1806) by Jean-Auguste-Dominique Ingres, "Joli Coeur" (1867) and "Woman in the Window" by Dante Gabriel Rossetti, and "Jeanne Samary in a Low-Necked Dress (La Rêverie)" (1877) by Pierre-Auguste Renoir. There are also works of Pieter Paul Rubens, Francisco Goya, Élisabeth Vigée-Le Brun, Amedeo Modigliani and Morgan Weistling.
In the pub across from the villa there hangs a poster on the wall which features a design promoting Alexander. Alexander was a magician who performed in the early 20th century and enjoyed great success in his presentations within the field of mentalism (e.g. mind reading, telepathy and the like). Alexander was often promoted as "The Man Who Knows", due to his ability to answer questions put to him by the audience under seemingly impossible circumstances. This, of course, parallels the function of the automaton which is featured in the film.
The trivia item below may give away important plot points.
Alternate Ending: Tornatore filmed a different ending to this film, the location was a restaurant in Rome. The same location is used for a momentary earlier scene, but the end-scene filmed on the same Rome set was cut and replaced with a more elaborate scene and slightly modified dialogue filmed in a different international location.