"Ran" was Kurosawa's last epic film and by far his most expensive. At the time, its budget of $11 million made it the most expensive Japanese film in history leading to its distribution in 1985 exceeding the budget of 7.5 million dollars for his previous film "Kagemusha". It is a Japanese-French venture produced by Herald Ace, Nippon Herald Films and Greenwich Film Productions. Filming started in 1983. The 1,400 uniforms and suits of armor used for the extras were designed by costume designer Emi Wada and Kurosawa, and were handmade by master tailors over more than two years. The film also used 200 horses. Kurosawa loved filming in lush and expansive locations, and most of "Ran" was shot amidst the mountains and plains of Mount Aso, Japan's largest active volcano. Kurosawa was granted permission to shoot at two of the country's most famous landmarks, the ancient castles at Kumamoto and Himeji. For the castle of Lady Sué's family, he used the ruins of the custom-constructed Azusa castle, made by Kurosawa's production crew near Mount Fuji. Hidetora's third castle, which was burned to the ground, was a real building which Kurosawa built on the slopes of Mount Fuji. No miniatures were used for that segment, and Tatsuya Nakadai had to do the scene where Hidetora flees the castle in one take. Kurosawa also filmed a scene that required an entire field to be sprayed gold, but cut it out of the final film during editing. The documentary "A.K." shows the filming of the scene.