Rakesh Roshan wanted "Krrish" to be a trendsetter in Indian cinema, with visual effects on par with Hollywood films. He hired Hollywood special effects experts Marc Kolbe and Craig Mumma, who had both previously worked on such films as "Independence Day", "Godzilla" and "Sky Captain", to help create the visual effects for the film. Roshan also hired Hong Kong action director Tony Ching after admiring his work in "Hero". Before production began, Hrithik Roshan went to China to train with Ching for the cable work that would be needed to make his character "fly". A story board of the film was prepared and sent to Ching to help him develop the action sequences. Additional production credits include: Farah Khan – dance choreographer, Samir Chanda and Sham Kaushal – art directors, Baylon Fonesca and Nakul Kamte – sound, Nahush Pise – makeup artist, Sham Kaushal – assistant action director. "Krrish" was the first Indian film to be shot in Singapore under the Singapore Tourism Board's Film-in-Singapore subsidy scheme, and over 60% of the film was shot there. Shooting was accomplished on location over a span of two months, from September to November 2005. Locations featured included the Singapore Zoo, the Gateway building, and the Singapore National Library. Another major filming location was Robinson Road, where heavy rains caused production delays. The Singapore police were on location to block roads and protect the filming equipment, such as when the film's action scenes required two 250-foot high industrial cranes. Author Audrey Yue noted that the film shoot benefited Singapore by leading to domestic and Indian film-induced tourism. Filming also took place in Manali and Film City in Mumbai. During filming of a flying stunt, one of the wires that was tied to Hrithik Roshan broke, causing him to fall 50 feet, though he landed safely on a shop's canopy. Hrithik described the incident as a "freak accident", stating, "I was skydiving to my death till I fell on a six-feet-long canopy of a shop that was out because of the slight drizzle. The canopy had iron rods. But I missed those rods too. What do I say? I guess the right word to describe the situation would be "jadoo" (magic)." Roshan also suffered other injuries during the film's production.