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Leonid Gaidai often worked with Yuri Nikulin, Leonid Kuravlyov and Gennady Khazanov in his films. Gaidai was a Soviet film director, screenwriter, and actor. He is best known for his comedies, such as Operation Y and Shurik's Adventures, which are considered classics of Soviet cinema. Gaidai worked with many of the same actors in his films, including Nikulin, Kuravlyov, and Khazanov.