Katsuhiro Otomo's film Steamboy is the most expensive anime ever made in Japan.

It took 10 years to produce and had a budget of $20 million (2.4 billion yens).

More than 180.000 were necessary to tell the story of a boy inventor and a new form of energy in a victorian cyber-punk era.

Due to a lack of marketing the film was not a box office success in the United States.