<P> Rising Sun Pictures produced more than 170 visual effects shots for Thor: Ragnarok . They worked on the Valkyrie flashback sequence, with the sequence's surreal ethereal appearance achieved through a combination of motion capture, computer graphics, a 900 fps high - speed frame rate, and a special 360 ° lighting rig containing 200 strobe lights to bathe the scene in undulating patterns of light and shadow . Rising Sun also helped create the various CGI aspects of Hela, such as her "hair wipe transition" to her horns, and her original introductory sequence where she destroys Mjolnir in New York City . When that sequence changed to take place in Norway, ImageEngine stepped in to work on the sequence, as Rising Sun was focused on the palace fight sequence . </P> <P> ILM, who worked on previous incarnations of the Hulk, had to add much more detail to the character's facial features in Ragnarok due to the Hulks increased dialogue . ILM visual effects supervisor, Chad Wiebe stated, "We went back to scratch and got Mark (Ruffalo) in the chair doing a new Medusa (Performance Capture). We went for a full range of motion, we captured about 90 different expressions in the Medusa, and from there we built an entirely new library that would allow him to cover a full range of normal human visual characteristics ." To help create the Hulk, a person on set was covered in green body paint, and would replicate the intended motions of the character to aid the visual effect artists . Additionally, stunt actor Paul Lowe, who is under five feet tall, stood in for Hemsworth during some of his interactions with the Hulk so that the Hulk's stunt men would be proportionally correct . In some instances when Thor and the Hulk interacted, a digital double was used for Thor, also created by ILM, to have greater flexibility for the shots . ILM worked on all of the Hulk moments in the film outside the final fight sequence, which was completed by Framestore using ILM's assets, as Framestore was primarily responsible for rigging that sequence . Framestore completed nearly 460 shots, which featured digital doubles of Thor and Hela, Fenris, Korg, Miek, the giant Surtur at the end of the film, and over 9,000 buildings for Asgard, based on assets D Negative had from The Dark World, resulting in over 263 character, vehicle, prop, and crowd rigs . </P> <P> Luma Pictures produced over 200 shoots in eight sequences, particularly for the characters Korg (receiving assets from Framestore) and Miek . Method Studios provided over 450 shots, including Thor's opening fight against Surtur in Muspelheim and Hela's fight against the Asgardian guards . D Negative worked on over 190 shots, creating the environment for the planet Sakaar, including its junkyard landscape and wormholes, with the wormholes also being created through a collaboration with Digital Domain . </P> <P> By August 2016, Mark Mothersbaugh was hired to score the film . The synthesized score is influenced by the work of Jean - Michel Jarre . Waititi would have asked the band Queen to work on the soundtrack for the film if their lead singer Freddie Mercury was still alive, because the film is "a cool bold, colorful cosmic adventure" which would have suited the "feel" of the band . Additional music featured in the film include "Immigrant Song" by Led Zeppelin and "Pure Imagination" from the film Willy Wonka & the Chocolate Factory . Patrick Doyle's themes from Thor and Brian Tyler's themes from The Dark World and Avengers: Age of Ultron, as well as Joe Harnell's "The Lonely Man" theme from The Incredible Hulk series, are also used in the film . Hollywood Records released the film's soundtrack digitally on October 20, 2017, and physically on November 10, 2017 . </P>

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