Steamboy (スチームボーイ, Suchīmubōi) is a 2004 Japanese animated steampunk film, produced by Sunrise, and directed and co-written by Katsuhiro Otomo, his second major anime release, following Akira. The film was released in Japan on July 17, 2004. Steamboy is the most expensive full length Japanese animated movie made to date. Additionally, the film was in production for ten years and utilized more than 180,000 drawings and 440 CG cuts.
Ray is a young inventor living in the U.K. in the middle of the 19th century. Shortly before the first ever Great Exhibition, a marvelous invention called the "Steam Ball," behind which a menacing power is hidden, arrives at his door from his grandfather Lloid in the U.S. Meanwhile the nefarious O'Hara Foundation has sent men to acquire the Steam Ball so that they can use its power towards their own illicit ends.