A team of 20 artists took four months to complete the film's visual effects.
The first fiction film to be allowed to shoot inside the renowned Louvre museum in Paris. Previously only documentaries like had been shot there.
Juliette Gréco's appearance is a nod to her leading role in the popular 1965 television adaptation of Arthur Bernède's novel, Belphégor oder Das Geheimnis der Louvre (1965).