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Stewardess Isabelle, played by Sylvia Kristel, is a prominent character in the 1979 disaster film "The Concorde.. Airport'79." As a stewardess aboard the luxurious supersonic passenger jet, Isabelle showcases her competence and dedication to passenger safety during the film's suspenseful and perilous events. Her portrayal adds depth to the narrative and highlights the critical role of cabin crew in aviation.