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Hedgehog in the Fog is a 1975 Soviet animated film directed by Yuri Norstein and produced by the Soyuzmultfilm studio in Moscow. The Russian script was written by Sergei Grigoryevich Kozlov, who also published a book under the same name. In 2006, Norstein published a book titled Hedgehog in the Fog, listing himself as an author alongside Kozlov.