<P> Louis Leterrier, during an interview, revealed that he is a big fan of Masami Kurumada's Saint Seiya manga (also known as Knights of the Zodiac) and its anime adaptation . He specifically cited the armor that the Gods wear in his film remake as a sign of homage and respect to Saint Seiya . Masami Kurumada, the author of Saint Seiya, was even asked to collaborate with the production team on poster designs . </P> <P> Sam Worthington took the role of Perseus because he wanted to make a Clash of the Titans for his nine - year - old nephew's generation . During filming the cast had a few laughs about the costumes, but he took it very seriously "so the audience doesn't have to ." Worthington also did not wear sandals while filming; he instead painted toes on his sports shoes so he could perform the stunts better . </P> <P> For the 2D to 3D conversion, Leterrier approached the studio early on about a 3D conversion, but it was expensive and very new technology . After Avatar, the studio put pressure on Leterrier to convert the film . He was worried because of his previous concerns but was convinced after seeing the View - D conversion process . Leterrier considered the 3D conversion to improve the viewing experience, and states that it should not be seen as a gimmick . </P> <P> In 2013 Leterrier said of the 3D conversion; </P>

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