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Petty’s journey into the adult film industry commenced in the late 1970s, a time when the genre was gaining in popularity and starting to cross over into mainstream entertainment. Her first significant breakthrough was in the film Disco Lady (1978), where her striking resemblance to actress Farrah Fawcett became a pivotal marketing point. This similarity garnered her the label of a "Farrah Fawcett look-alike," which followed her throughout her career.