do before." Producer Aditya Chopra told Rai to lose weight after she gained it for her role in Bride & Prejudice (2004). Yash Chopra stated, "But yes, the role does require Rai to convey oodles of sensuality. She has asked for a couple of months to get into shape. We (at Yash Raj Films) are very clear about every character in every script and what's required of the actors. Before Dhoom, Esha Deol was specifically briefed about the look and the attitude she needed to cultivate. She readily agreed, and look at what Dhoom did to her career!" Roshan also lost 5 kg for his role at Aditya Chopra's request. With the exception of Abraham and Deol, all of the other main actors in Dhoom reprised their roles for Dhoom 2. Filming Dhoom 2 was filmed in Mumbai (India), Namibia, Durban (South Africa), and Rio de Janeiro (Brazil), making it the first Bollywood movie to be shot in Brazil. In total, production lasted 18 months and cost of . To ensure the sequel would be different from the original, which became famous for its brash motorcycle stunts, director Sanjay Gadhvi included very few motorcycles in Dhoom 2. Nonetheless, Roshan's role required him to perform several dangerous stunts involving activities such as roller-blading, sand boarding and snow-boarding. Dhoom 2 made extensive use of visual effects, which were filmed at Yash Raj Studios. While shooting at Yash Raj Studios, the film suffered from a flood that destroyed the studio sets and delayed production. Fight and action sequences were storyboarded before being shown to Gadhvi and Allan Amin, who would make changes. The scenes were then sketched, given "proper shot-list[s]", and shared with Tata Elxsi, who oversaw the pre-visualization of the sequences. Several scenes were filmed with the use of green screen and computer-generated imagery. For example, the stunts Roshan performed on a train in the Namib Desert used green screen; after Roshan recorded the stunts on a set, Gadhvi traveled to the desert to film the background. Other stunts were performed by stuntmen whose faces were later digitally exchanged with the actors'. The bullet effects and Roshan's gadgets and the mechanical arm were also computer-generated. The scene involving Bachchan coming out of a lake using a jet ski was created using a green screen. The stunt came out at 90 degrees, but Gadhvi wanted a 60 degrees jump. So, it was shot