The animation of Sparx's designs were outsourced to a facility in Ho Chi Minh City that consisted of 150 animators and only worked in television advertisements. Since none of the Vietnamese animators could speak English, Leondis recorded videotapes of himself doing character movements and the voice actors doing their lines; and the Vietnamese workers would animation the characters with the tapes as references. According to Howard, "It was a real buzz to go out there and see our artwork come to life on their monitors. It's a subtle film, but they got it." "Igor" was computer-animated with Autodesk Maya in less than 18 months.