Directed by Spanish documentary filmmakers Norberto López Amado and Carlos Carcas, the film was produced by Antonio Sanz and Elena Ochoa. Although creating a film on Foster was something the directors and producers had discussed over the course of several years, it didn't quite click until they went on a visit to Foster's newly constructed Beijing Airport — what is currently the largest building in the world. The filmmakers meshed with Foster and his team, and decided that creating this film was a must. "I'm not an architect, nor do I consider myself someone who knows about architecture," says Carcas. "So for me, the main question in this film is 'Why should I care about architecture, and what does it matter to me?'"Above: The Millau Bridge in Southern France