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Bio: Leszek Mech (who used the pseudonym Lesław Królicz) was a Polish screenwriter of animated films, poet and prose writer, journalist. A long-time collaborator (from 1962) at the Animated Film Studio in Bielsko-Biała, he served as the Studio's literary director from 1962 to 1971; he co-wrote the scripts for approximately 300 animated films, including the Bolek and Lolek series, as well as animated feature films (The Great Journey of Bolek and Lolek, The Adventures of the Blue Knight)