The crew initially worked on pre-production for six months in Los Angeles in 1985, and then a staff of ten people moved to Taiwan with Rees for another six months to work with Wang Film Productions Company Limited in Taipei (headed by James Wang) for the principal animation, then returned for a third six-month work period for post-production in the U.S. Rees's wife Rebecca was the film's directing animator, and she taught classes to the Taiwanese animators in order to improve the quality of their output.